Engine Masters
Auto parts testing and engine-to-engine shootouts; developed from the popular Engine Masters Challenge and hosted by Steve Dulcich of Engine Masters magazine, David Freiburger of Roadkill, and Steve Brule of Westech Performance Group.
Air-to-Air Intercooler, Now With CO2!!
S8 E1
Hot intake air temps are bad and cold is good; the guys explore the benefits of an air-to-air intercooler in terms of power and detonation resistance.
High vs. Low Injectors
S8 E2
Testing shows that carbs make more peak power than EFI, and the explanation is based on the fuel's ability to cool the incoming air on its way to the head, while multipoint injection might not do that.
Tank Testing for Air-to-Water Intercoolers
S8 E3
Exploring the effects of different sized water tanks and their ability to keep the intake charge colder longer; air-to-water intercoolers make power by absorbing the heat of the intake air into the cool of the IC's water.
The Throttle-Body Throwdown!
S8 E4
The crew compares 90 mm and 105 mm forward-facing throttle bodies against one another, and then to 2000 cfm worth of top-mounted, dual quad-style throttle bodies, all atop a fuel-injected, 700-hp LS7.
Bellmouth Power
S8 E5
Whether the bellmouth can create more power, despite being designed to direct and smooth airflow into the throttle body; testing the theory with N/A and supercharged versions of the 363ci small-block Ford.
Sequential vs. Batch Fire EFI
S8 E6
The reputations of sequential and batch-fire injection styles each carry when it comes to overall power; the guys explore that question, tunability, what it takes to make the switch, and all of the pros and cons.
One Cam, Three Ways
S8 E7
The guys show how three seemingly identical cams can behave very differently; the differences between a standard, a high-intensity, and a low-shock cam.
Straight Talk About Spark Plugs
S8 E8
The crew examines the power of different types of spark plugs, such as ones with fancy metal tips or extra ground straps, and explains the results of gapping them bigger or smaller.
Exhaust Tech: Header Primary Length
S8 E9
The guys explore how the length of header primary tubes can affect the power curve, and look at how engines expel exhaust, including the negative pressure wave that pulls burnt gases from the cylinder and where the power occurs.
Cams: How Small Is Too Small?
S8 E10
The guys explore usable, cruise-able, tow-ready torque curves with three of the smallest camshafts they've ever tested.
When Headers Don't Matter
S8 E11
Steve Dulcich has posed the theory that headers don't matter nearly as much when paired with a small cam as they do with a larger cam; the guys use factory-style manifolds, shorty headers and full-length headers with both tiny and meaty cams.
Big-Block Chevy Dual Plane Shootout!
S8 E12
A long-overdue segment of advice for street drivers of big-block Chevys, even those with average power, cruiser level, and stock BBC's roaming around.
The Weight of Oil
S8 E13
With so many oil weights and combinations available, the crew shows how different weights behave, perform and react inside an engine; a primer on oil weights and how the differing weights affect horsepower, pressure and resilience to temperature.
Keep Your Fuel Cool!!
S8 E14
Colder fuel makes more power; how to consistently keep fuel temps down, and what difference it really makes.
The Surprising Findings of the Air Filter Shootout
S8 E15
The guys have run standard 14-inch round filters in the past and wondered every time if there's any difference between them.
Proper Pushrods & Sufficient Springs
S8 E16
Checking to see if pushrods or valve springs affect power production, even when valve float isn't a problem; the crew tests varying combinations of valve spring and pushrod strengths.
The Nitrous Plate Debate
S8 E17
The spray-bar style nitrous plate has been the standard forever; the guys put the tried-and-true spray-bar style up against the newfangled perimeter-discharge style.
BBF Intake Manifold Comparison
S8 E18
The team has done intake manifold comparisons on nearly every big and small block platform, and at long last, it's big block Ford's turn; shooting out single and dual planes on a street/strip 514ci combo relating to what many BBF guys are running.
Heat Management
S8 E19
Whether from exhaust, transmission or any heat-generating components, controlling heat can make a hot ride comfortable, and even a hot intake charge cooler. We test header wraps and panel heat shields, to see how -- and how not -- to keep your cool.
A Study in O2 Sensors and AFR Readings
S8 E20
Standalone air/fuel ratio gauges come with a world of tuning possibilities and pitfalls; the guys compare five off-the-shelf units, then show how things like placement, air leaks and dead cylinders can affect readings, tuning decisions and power.
BIG CFM Shootout
S8 E22
Freiburger's 582 big-block Chevy returns; shooting out 1050, 1250 and 1450 CFM Dominators; seeing how much difference the extra CFMs make, and how much does the tune change between them.
Sniper 2 the Rescue
S8 E23
The crew tests the second iteration of Holley's throttle body EFI system.
Port v Plate Nitrous Injection
S8 E24
One way to tell if a person should be running a plate or a port system is whether a 300 shot of nitrous sounds like a lot; the guys walk viewers through each system, how much power can be added through each and the jetting differences between them.
The Exhaust Duration Equation
S8 E25
Diving back into the intricacies of camshaft grinds; exploring not just split-duration cams, but how larger and larger splits affect the power curve.
Header Science: Step vs. Merge
S8 E26
The guys test stepped headers, whose primaries step up in diameter, and merge collectors, which create a restriction in the collector, against good old-fashioned headers.
Holley Carb Tuning Tips
S7 E1
The Holley 4150 has been the gold standard for performance since it was released to the aftermarket in the '60s; resident carb whisperer Steve Brule walks through all the tips and tricks to get a 4150 running best on any engine.
Slant-Six Manifold Shootout!!
S7 E2
Dulcich is at it again with his slant-six tomfoolery; with goals of his 225ci monster powering a daily driver '68 Dart, Steve is putting four aftermarket intake manifolds to the test to see which will give him the most grunt.
Rectangle vs. Cathedral Ports for LS Power!!
S7 E3
A look at the difference in power potential between dime-a-dozen cathedral ports and the "racier" rectangular ports found on the LS3.
The Battle of the Gen III Hemis!!
S7 E4
The Engine Masters are battling two iterations of the 5.7 III Hemi and are learning a ton in the process; with an eye toward engine-swap simplicity, they have stuffed both with the biggest cams they can handle in the most affordable way possible.
SBF Intake Shootout!
S7 E5
The Windsor family gets its turn at an intake shootout; this Windsor is begging for the best single-plane manifold to breathe through and offerings from Edelbrock, Trick Flow, Ford Racing, AFR and SpeedMaster are sure to make small Ford sing.
Solid Lifter Cam Comparo; Roller vs. Flat Tappet
S7 E6
It's the age-old battle of power vs. price; investigating whether choosing a solid flat tappet sacrifices power and whether the extra power of the hydraulic is worth it; talking duration, lobe intensity, spring pressures, dollars and horsepower.
Manifolds or Headers for Your Turbo LS
S7 E7
Examining whether cast manifolds are enough to keep up with turbo motors, and at what point it should be running proper headers.
Does Fuel Temperature Matter?
S7 E8
Inspired by their previous study of coolant-temperature testing, the guys go one step beyond icing down the manifold, deliberately heating and cooling fuel to see the difference it makes.
Measuring the Max Wedge for a Street 440
S7 E9
The Mopar Max Wedge head was once considered all but unobtanium, but the aftermarket has come to the rescue; testing a 270cc Trick Flow unit to see if the Max Wedge style, with its bigger intake runners and direct flow path, is a worthwhile upgrade.
Do Header Wraps Work?
S7 E10
Manufacturers claim header wraps not only reduce radiant heat, but create additional power through their scavenging effects and superior heat management; a set of painted, ceramic-coated and wrapped headers are tested against one another.
Which Ram? All the Rams?!
S7 E11
The guys test out a bunch of Holley's "Ram" intakes on their 6.2-liter LS.
Manifold Shootout for the Carbureted LS Crowd
S7 E12
Six manifolds with an old-school carb and a new-school 6.0 LS are tested.
Exhaust Cutouts
S7 E13
The guys see if exhaust cutouts do more than rattle passersby's eardrums.
Every Trick in the Book
S7 E14
The crew shows how to unlock the power lurking in an existing engine combination without buying, changing or upgrading a single component; they use tricks they've learned over the years to tune every HP out of the 410 Windsor from David's Disgustang.
Low Buck SBC Head Shootout
S7 E15
No matter how many LS swaps are out there, the old-school SBC is still an absolute force in the marketplace; the guys bolt three of the lowest-buck cylinder heads out there to their Ultimate Average 383 and make pulls for power.
Pick-a-Carb Shootout
S7 E16
This test is all about choosing the features wanted and needed on a carburetor, and how those features affect horsepower and tunability.
Single Pattern vs. Split Pattern Cams
S7 E17
The guys have tested single V-split pattern cams before and concluded that a split pattern can increase top-end power without necessarily affecting bottom-end torque; their findings have been challenged, and they're here for the science.
Oil Pumps for Power?!
S7 E18
The guys test three LS oil pumps in different volume and oil pressure configurations to see if too much pressure reduces horsepower.
Quest for F-Rod Greatness
S7 E19
What do you do when your 800-horsepower 572 just won't get you consistent eight-second passes in your '31 Model A?
Six Pack Shootout!
S7 E20
The guys shoot out six packs on a 440 to see which makes the most power.
Magic of the Flex Fuel Sensor
S7 E21
The guys figure out how to make more power with a flex fuel engine.
The Leaker Episode
S7 E22
Do boost leaks really even matter? Can vacuum leaks make more power? You read those questions right. Come be surprised right along with us as we find power in unexpected places, and lose less than we'd expect in others.
Wet vs. Dry Nitrous
S7 E23
Discovering how a wet system stacks up against a dry system in an EFI manifold.
Blown v. NA - Two Ways to 1,000 hp
S7 E25
One thousand horsepower is all too common these days and all too accessible. With these numbers well within reach, it's time we looked into two ways to get there: a supercharger on a medium-sized mill; and natural aspiration atop large-displacement.
Tunnel Ram Battle: Single v. Dual Quad
S7 E26
As a longtime promoter of tunnel rams, Freiburger is often asked about running a four-barrel carb vs dual quads on the tunnel ram; he answers with a setup for guys who are all about the look and presence of the tunnel ram.
Do Cylinder Heads Matter Under Boost?
S6 E1
The crew dives into the relationship among cylinder head flow, liberal application of boost and horsepower.
Does Octane Make Power?
S6 E2
The guys run back-to-back tests with 87, 91, 110, 116 and even E85 to see if higher octane can make more power, and if an engine's optimal timing even changes with different octane.
The Blow-Through Battle: Carb v. TBI
S6 E3
The guys outfit their Ford 363 with a Demon 650 blow-through carb and Holley's new Super Sniper Stealth throttle-body-style EFI to determine which will reign supreme.
Mandrel- v. Crunch-Bent Exhaust
S6 E4
The guys find out if mandrel-bent exhaust pipes really make more power over the crimped and crunched pipes the local shop bends up.
Oil Filter Shootout
S6 E5
The crew tests 10 different filters in a hunt for the best units available.
Carb Hats for Blowers
S6 E6
The guys determine what type of carb hat is best for that blow-through application.
Roots Blower Testing!
S6 E7
The crew is searching for low air temps and big HP numbers as they compare the heat-extracting power of under-roots intercoolers vs. E85; they aim to bring up the entire curve by swapping the short-runner blower manifold for a tunnel ram.
Is Intake Manifold Port Matching Worth It?
S6 E8
The crew auditions their 406 SBC with an out-of-the-box Super Victor, a port-matched Super Victor and an off-shelf Wilson-prepped version.
Dyno Testing for Real Life!
S6 E9
Testing the headers, intake, fuel system and everything else that will be used in David Freiburger's Model A drag car.
Does Compression Make Power?
S6 E11
The crew looks at compression and how it makes power plus how sensitive it becomes to temperature on pump gas.
Mopar Muscle Showdown!
S6 E12
A battle between the iconic 440 Six Pack and the legendary 426 Hemi.
Screaming 8K RPM!!
S6 E13
A combination good for 7K RPM; the crew shows how improved airflow on a small motor equals pure RPM.
It's the Oil Pump Pump-Off!!
S6 E14
The crew explains the difference between standard, high-volume and high-pressure oil pumps in terms of pressure, flow and horsepower.
Exhaust for Turbos - The Dos and Dont's
S6 E15
The crew tries to find the right balance of decibel levels and performance.
The Wedge Head Shootout!!
S6 E16
It's a battle of price vs. power for street-centric wedge cylinder heads.
Hilborn Stacks!
S6 E17
The crew dives into the waters of individual runner systems, shows how to tune them, and whether all that cool makes any more power than the stalwart carburetor.
Choosing Fuel: Which Barrel is Right for You?
S6 E18
The guys study the fueling demands, horsepower, and the pros and cons of running different types of fuel.
Water-Meth Injection: Is It Cooler Than the Intercooler??
S6 E19
The guys explore the cooling benefits of water-methanol injection.
Cold Air Considerations
S6 E20
Trying to find the least restrictive way to route a cold air system.
Nitrous for Noobs - The 150 Shot Walkthrough
S6 E21
Using a basic 150-horse plate system, the crew demonstrates the basics on installation, safety and tuning for a typical carbureted engine.
The Split Duration Decision
S6 E22
A look at the differences between single and split-duration camshafts.
5.9 Magnum Intake Shootout
S6 E23
Testing intake upgrades for a street car swap; pitting the factory manifold against a worked-up aftermarket piece.
The Piston Pin Offset Flip -- Is It a Flop?
S6 E24
The guys perform what may be the first ever back-to-back comparison of factory-oriented pistons against reverse-oriented pistons.
General Mayhem 440 Returns
S6 E25
The General Mayhem 440 is strapped on the dyno and decisions on which intake and headers to run, as well as how to squeeze out more than the 707 Hellcat horsepowers, are made.
A Crash Course in Valve Float
S6 E26
Some know valve float as the evil that lurks beyond the redline, the dreaded robber of horsepower and destroyer of valves; taking a look at the valve float.
Rod Ratio Examined
S5 E1
The crew tests the effects of running long vs. short rods on otherwise identical engines; they'll find out if long rods make more torque, if shorter rods' faster swipe makes a difference, or if rod length doesn't actually matter.
Cheap Carb Showdown
S5 E2
The guys find out which cheap carburetors produce the most expensive results; they pick a fight among remanufactured offerings from Edelbrock, Summit and Demon to see which will pump the most power into their 383 Chevrolet.
Pantastic News!
S5 E3
The guys flip things upside down to find out how much power might be left in the oil pan; a number of factors play a part in minimizing turbulence around the crank, but an $1,100 solution may not be worth the cost.
Iron vs. Aluminum Heads: A Study of Heat
S5 E4
The guys try to shed light on whether iron or aluminum heads will deliver more power; they'll look at weight savings and heat retention's effect on cylinder pressure.
Advances in Cam Timing
S5 E5
A camshaft is causing issues, so the crew explores how changes to cam timing can help tune a power curve for high-end performance or low-end power.
Free Valvetrain Tuning
S5 E6
The guys experiment with lash adjustments in an effort unleash more power.
Single vs. Dual Exhaust
S5 E7
The guys determine whether a dual 2.5-inch or a single 3.0-inch exhaust system has more power; they swap pipes on a run-of-the mill 351 Ford, then they test turbo versus straight-through mufflers and Y-pipe versus a 90-degree merge.
Carb Spacers: Gimmick or Gold?
S5 E8
The guys answer the question of whether a carb spacer produces more power.
Windsor Manifold Showdown
S5 E10
The guys compare four of the most popular intake manifolds on the market.
1,500 HP, the Blown and Squeezed BBC Way!!
S5 E11
The guys take 555 BBC and the Blower Shop then test the difference in power between gas and e85.
Engine Personality Test: Camshaft LSA Explained
S5 E12
The guys dive into one of the most commonly confusing elements of camshaft design, lobe separation angle.
The Turbo MoHo 4-4-0
S5 E13
Engine Masters explores the myriad gains that can be found for a sickly, low-compression 440 in three stages; the guys plumb up a turbo, add a set of too-trick-for-this cylinder heads, and finally push some turbo boost through those heads.
Welcome to a Day at the Dyno!
S5 E14
The guys go through the basics of bringing a motor to the dyno cell for the very first time.
Throwing Sparks: The Great Ignition Debate
S5 E15
The crew asks whether it's worth it to upgrade an ignition system.
Tuning the Tubes: Why Header Collector Length Matters
S5 E16
The guys fit the COVID-350 with progressively shorter header collectors to see the gains that come from running just a little more piping; finding out how much under-the-curve power collectable with cheap yet effective trial-and-error tuning.
One Thousand Horsepower. Naturally Aspirated. Period.
S5 E17
The guys follow Freiburger's personal quest for 1,000 naturally aspirated horsepower.
ZOOMIES!! A Novelty Header Shootout!
S5 E18
The crew investigates just how much power gets sacrificed to look cool.
Less Weight to Rotate
S5 E19
The guys see if lightweight rotating assembly parts help make more power.
Headers for Boost!!
S5 E20
The guys test three sets of headers on a power-boosted motor.
Tunnel Ram vs. Cross Ram! The Old School Dual Quad Shootout
S5 E21
As far as dual-quad manifolds go, it's hard to beat the cool factor of the tunnel-ram and cross-ram setups; to see which makes more power, the guys bolt each to the 383 Chevy and stagger jets until their gasoline-soaked hearts are content.
1,000 HP Muffler Showdown!!
S5 E22
The guys see which muffler works best for street-driving 1,000 HP monsters.
Small-Block vs. Big-Block. How Do You Want Your 500 HP?!
S5 E23
The guys break down two different engines that make similar numbers.
Dulcich's Quest for Slant 6 Greatness!
S5 E24
Steve Dulcich puts his Leaning Tower of Power to the test.
The Great Blower Cam Debate
S5 E25
The guys put claims about blower cams to the test with their new 363ci small-block Ford.
Engine Masters Go to School on the Gen III Hemi
S5 E26
After years of willing dismissal and dinosaur-brained ignorance, the Engine Masters have decided to give the Gen III Hemi a fair shake.
SBC Dual-Plane Shootout
S4 E1
Looking for the best dual-plane on a budget; bolting up four popular Air-Gap style dual-planes on 372 small-block Chevy.
Heat Kills Power: The How and Why
S4 E2
The experts explore why increased engine temperature decreases power.
Carb Size Matters
S4 E3
The experts take the mystery out of carburetor selection.
Hot In, Cool Out: Intercooler versus Water/Methanol Injection for Turbos
S4 E4
David Freiburger, Steve Dulcich and their guest Richard Holdener explore the science of reducing temperature out of a turbo in order to increase power out of the engine.
Testing the Blower Manifold
S4 E5
David and Steve bring in Richard Holdener to try to blow the lid off of internet blower manifold theories; they use FAST's modular-runner intake manifold to test both short and long runners and see how each reacts.
Tuning in the Tune-Up
S4 E6
The guys demonstrate how much power can be wasted with a sub-par tune-up.
Hydraulic vs. Solid Lifters: The Redux!
S4 E7
The last time the guys took on hydraulic and solid roller lifters, every answer generated more questions; now they'll try different combinations, then figure out what makes sense and what the consequences are for power and wear.
$40 Muffler Shootout
S4 E8
The guys put budget mufflers to the test. They'll run their 408 Cleveland with 12 different options, including no muffler, straight through, chambered and turbo style, then compile all the facts needed to choose the right option.
Battle of Budget Fuel Pumps
S4 E9
The experts test the limits of four budget mechanical pumps on their 500 horsepower Chevy engine. They'll see if each can deliver enough pressure and flow to support the power they've come to expect.
Bigger Plenum
S4 E10
The crew dives into internet theories about big boost, big cubes and big RPM needing bigger plenum volume; they explore if increased volume really turns into increased power, or if it just leads to hood-clearance headaches.
Big-Inch, Big-Power, Big Block
S4 E11
David, Steve and Steve hunt for the best manifold to make big horsepower on a big-block Chevrolet. They'll throw four different manifolds from Dart, Pro-Filer, Brodix and Edelbrock on top of 598ci to see what makes a difference.
Gas vs. E85
S3 E1
The guys test the differences between octane gas and ethanol-blended fuel.
Chevy 350 vs. Ford 351!
S3 E2
It's a battle of power between the Chevy small-block and the Ford Windsor.
How Oil Kills Power!
S3 E3
A look at how oil kills power because it's not about synthetic versus regular oil and not about a brand-to-brand comparison, but about windage and oil-pan design.
Turbo LS the Right Way!
S3 E5
The guys show you where they spent and saved money on their engine build.
If Accessories Could Kill
S3 E6
The guys show how much power a water pump can kill in an engine.
598ci of Torque vs. Horsepower
S3 E7
The guys show two different power combos for an engine.
1,500HP Junkyard Short-Block!
S3 E8
The Engine Masters go to the originator of the Big Bang Theory dyno test, Richard Holdener, to find out how big a junkyard Chevy LS engine with a turbo can go.
Best Intake for Nitrous Oxide?
S3 E9
The guys find out if street/strip racers can run nitrous-oxide injection.
EFI vs. Carbs Redux!!
S3 E10
The guys have a EFI system facing off against relics known as carburetors.
200-MPH Horsepower!
S3 E11
Featuring David Freiburger's own engine for the 200MPH Club at El Mirage Dry Lake; focusing on the details that make the engine optimized, specifically for sustained wide-open throttle operation.
Stock vs. Built
S3 E12
The guys take a bone-stock and test different combos of build and boosted.
Camshaft Specs Explained
S2 E1
David Freiburger explains cam lift, duration, love separation angle, and installed centerline.
DIY Cylinder Head
S2 E3
Featuring Steve Dulcich's homegrown porting job on a set of Edelbrock aluminium cylinder heads.
H-Pipe vs. X-Pipe!
S2 E4
The guys test the power of using various pipes on a straight dual exhaust.
Powerstroke Turbo on a Ford 5.0!
S2 E5
David Freiburger pulls the engine out of the Rotsun 240Z and stabs it on the engine dyno.
Chevy 350 Mods: Dyno-Proven!
S2 E6
Explore a frequent tech question: "What budget bolt-ons can be used on a stock small-block Chevy 5.7 to get more horsepower?"
Supercharger Tuning and Proven Power!
S2 E7
Hosts David Freiburger, Steve Dulcich, and Steve Brulé demonstrate the installation and tuning of a Weiand 6-71 blower and dual 750-cfm double pumpers on a budget 350ci Chevy short-block.
How Much Boost can a Stock Engine Take?
S2 E8
The guys strap a centrifugal supercharger to a bone-stock Chevy bottom end.
Air Filter Horsepower Shootout
S2 E9
The guys test 19 different combinations of filter sizes and styles.
Cylinder Head Games
S2 E10
Too big of an intake port kills bottom-end torque.
Do Roller Rocker Arms Add Horsepower?
S2 E11
Roller rocker arms reportedly increase horsepower through reducing friction.
Dyno Proven: 50 HP With One Bolt-On!
S1 E1
Experts test a 400ci Chevy small-block crate engine to see if it lives up to its advertised power; further review determines if David is justified in his love for dual carburetors and high-rise tunnel-ram intake manifolds.
383 Chevy vs. 383 Mopar!
S1 E3
In a head-to-head shootout with two engines, a Blueprint Engines crate Chevy 383 small block takes on a Mopar 383 hand built by host Steve Dulcich; to make this a fair test, the crew equalize as many variables as possible.
Exhaust Header Bash
S1 E4
The guys test various levels of destruction of a set of Hooker headers on a 550-horsepower, 400ci small-block Chevy from Blueprint Engines, with the result shocking them.
Hellcat Power with a 5.7 Hemi
S1 E5
The guys get maximum horsepower from a stock, bottom-end 5.7L Dodge Hemi.
Are CNC Ported Cylinder Heads Worth the Money?
S1 E6
The guys figure out how much of a difference CNC ported cylinder heads make for people who are running a typical street-cruising small-block Chevy V8.
Holley vs. Edelbrock
S1 E7
The crew compares a Holley Tri-Power setup to an Edelbrock Dual-Quad kit.
Power of 2.5 vs 3-Inch Exhaust
S1 E9
The guys weigh in on 2.5-inch-diameter versus 3-inch diameter exhaust pipes and mufflers.
Ford vs. Mopar 408s
S1 E11
Mopar vs Ford engines.
The Right Exhaust Headers!
S1 E12
How to pick the right size exhaust header tubes for an engine.
How Much Nitrous?
S1 E13
How to safely use nitrous oxide with any engine.
Junkyard Jewel Power Bolt-Ons!
S1 E14
Putting speed parts on a used engine.
Cast Manifolds vs. Headers
S1 E15
Cast-iron manifolds versus mid-length headers versus long-tube headers; the fans feed the crew ideas of power tests they want to see.
Roller vs Flat-Tappet Cams!
S1 E16
The hosts spell out the differences between two camshaft designs, a hydraulic roller cam setup versus the old-school flat-tappet cam, depending on one's desire for power and durability.
Cheap vs. Expensive Mufflers!
S1 E17
The guys explore whether price determines performance in a muffler.
Horsepower Test!
S1 E18
The guys run a dyno compare you've probably never seen before.