Muffler Showdown! What's the Best Muffler for Your Engine? | Engine Masters | MotorTrend 

This needs to be a regular segment every year with all the newest mufflers to the market.

I would like to see the muffler test ran again, but with the motor in the first part of the video. That's more realistic for a common person, with respect to sound and gains.

Because of this show, I installed a single 3” hooker maximum flow on my 5.9 Dodge Ram van with a 3” tail pipe over the rear end. Super happy with how it sounds and feels!! Just did a 2000 mile road trip and couldn’t be happier! Thanks fellas

I would really like to see a comparison with the same engine (345hp V8) and exhaust size (2.5") used in all tests, and test the different TYPES of mufflers, not just brands of mufflers. So glasspack (magnaflow) vs chambered (flowmaster) vs turbine (jones or aero) vs turbo (pypes or jones) vs spiral flow (moroso). Maybe even throw one of Flowmaster's Super HP-2 laminar flow mufflers in as well for good measure. Track the max HP and torque, as well as the max dB from the exhaust pipes, and have an audio recording of each muffler tested so users can give them a listen and find their subjective tastes.

How are $25 glass packs not on here?

Magnaflows are my favorite they're quiet low RPMs and loud at high RPMs

I can second that about the Flowmaster muffler they work well as skid plate I've had them make sparks across Bridge joints in a drag car and have had them hold up for 20 years

So happy I watched these guys through college. Level 2 auto tech and welder now. Listening to these boys I tuned a 2.0tfsi Audi on stock parts to over 300whp.

Awesome episode. I have a 09 G8 and the hooker maxflows have changed the game for me. Not only were they much quieter than the kooks mufflers, but they made 2hp more on the dyno. And the lower end actually improved by a max of 5hp/4lb ft. I love them. This test just proves I made the right choice when I picked them up. Quantification at its finest

I always liked thrush straight through tin can right off a header . Fiberglass packed with turndowns . No tailpipes !!! Dang that 440 would rumble !!! ✊🏻👍👌

Borla looks like it was welded in a high school shop class! 😄

love my FLOWMASTER SUPER 10 SERIES.

I have an 87 K5 with a tbi 350. It had a stock exhaust. I used a magnaflow rumble muffler and it sounds perfect. No annoying droning and has a deep tone. 60 bucks at O'Reilly auto parts.

There’s plenty of cheap mufflers that would outflow the magnaflow. Put a $20 glasspack on there and it’s gonna flow well and not cost much at all. Would have loved to see a comparison in this video with a 2-1 setup vs the true duals

I remember a year ago or so when this was first shot. Not a bad episode 👍🏻

Should have tested the Flowmaster Super 10.

“In the last 15 years I don’t remember doing this test, And I don’t remember anything before that period” 😂😂 best

68 Dodge Dart Swinger 340's had a great sound right from the factory.

I have a Magnaflow catback on my 95 Camaro Z28 along with eBay stainless longtube headers. Made a huge difference. 💪🏾💪🏾💪🏾

Love watching your videos

Great show👍

My 05 grand marquis has a flowmaster super 10. I scrape a speed bump twice every day going into and leaving work. its held up beautifully after 2 years.

I like the deep bassy sound of Borla, they are the muffler of choice for my daily driver.

I just put a set of pypes M-80 race mufflers in my foxbody 5.0 mustang, i love the sound , and the price!

I put a Magnaflow SS system in my '05 GTO when it was new. It's still under there doing its job 16yrs later. It's quiet at cruise & loud at WOT.

Since you guys read all the comments I've seen a ton of header tests, but I haven't seen a 180° header or 8 into 1 tested. Those 2 would be an uptick in views

2 and a half inch 1 chamber flow masters on my built 306. Best muffler out there.

I got $29 Summit 3" welded turbos (flowtech afterburner) with my 454, quiet inside and sreaming outside.

If I'm not mistaken, the Thrush they test in the first part of the video is an old school turbo style muffler so not surprised that it makes less power.

I use Dynamax Bullets. My SBC has 3", and my 454 has 3.5" collectors. I tried short Flowmaster chambered mufflers on the 454 (660 HP), and they were about .03-.05 (always compensating for weight between 14-20 LBS. a pair) slower than the Bullets. The 305 (383 HP) loses .05 with mufflers at the same GVW. Not bad. Just FYI, NONE are all that quiet. LOL!

My 2023 Mazda 3 2.0 NA has a flowmaster super 10 .. im so happy for the result

Id go for the one with the best sound quality. With 1060 HP, nobody could tell an adfitional HP. It would all be phycological and the loudest one would feel the most powerful even if it was in last place.

"That's a HUGE difference" 3.7% horsepower loss. Also, the differential wasn't listed right on the graph. The numbers show a 13hp loss on Thrush, but it says "-3.1".

I'm running 2 FM Delta 50's on my XJ and they sound amazing! It doesn't sound like any other I6 I've ever heard.

Love these

look im just gonna comment because he was loving that flowmaster muffler so hard. its the truth. i bought some flo pro mufflers for my vortec sbc build last year. they are flow pro super v mufflers. flo pro makes great exhaust for diesels at a good price. they got into gas motors because people love their products. i got 2 2.5" super v mufflers for 70 bux shipped. they lasted 20k miles and i drove it in winter and didnt want to because its a clean car. the mufflers are fine. they are super strong and do not take damage. i bet the flowmasters are a little better metal. but flo pro super v is just as good and less money. makes a deep sound. quiet till half throttle. no rasp. you cant hear your cam chopping. just low deep glug or blub sound but it sounds like power. same motor with open headers sounds like a potato cam. very nice sound nobody has complained yet about it they all love the sound. i hope someone sees this and tries them because its a lesser known with the gas motor guys brand and im acutally very happy with them. ill buy mufflers from them now for a long time.

Try slapping a glass pack to reduce back pressure then no more than 24" straight pipe going into a dual chambered muffler off the glass pack and a over axle bend exhaust pipe to see if you get more or less torque an power when these parts are separately installed and or combined, when combined exhaust is quiet but doesnt make it lack power from my experience at least thats what it seemed. 2 into one exhaust hemi.

Just watching now but I'd really like a sound clip comparison between the different set ups. Be able to get an idea of sound differences.

A test with the far-more-quiet Dynomax Super Turbo would have been interesting to see! Wouldn't flow as well as the straight-through, but I bet it would be far better than the Thrush!

i went with 2.5 dynomax super turbo for my el camino w/327 ci

WOW!!!! I AM IMPRESSED!!!! Today you can buy the perfect muffler for your specific application. And generate high numbers as well. Thanks for sharing.

Any way y’all could do an oval vs round exhaust shootout?

How about with an x pipe installed. Might really change the flow dynamics of the flowmasters since they have a baffle in there. Not sure if it would make it better or worse though

I've put flowmasters on my trucks for years. Great sound and durability. They last forever

Muffler is implied, just to reduce annoying noise pollution, if it reduces noise without creating back pressure then it's a win win.

I have Long tubes, x pipe, 2.5 inch exhaust to a pair of 14" magnaflow mufflers, sounds soooo good

I would love to see yall do test with sweet thunder exhaust

Spin Techs are awesome

Flowmaster FlowFX series has a straight thru design and sounds amazing, plus it is stainless and you can get the 3in in/out centered for around $70. Hard to beat if you ask me. Would've loved to see it included here.

Wowza. The cheapest muffler (Hooker) made the best HP, basically equal to the best torque, and yet was almost the quietest. Clear winner IMO. Granted, this analysis leaves out the main point of a muffler....the sound. Couldn't really tell without hearing it in person.

Glad I've always gone with the Magnaflow on all my vehicles

Need to do the flowmaster laminar flow and the cherrybomb vortex!!!!!!! Test these against the old tech and then you can say you're up to date and relevant!

I'm getting deja vu watching this, must be a refresh.

I’m not sure of the brand. but had a single inlet and two outlets on my 4.0 Ranger OMG did that sound sweet. with dual exhaust. :-)

I have a flowmaster super 10 on my 09 silverado. It's loud and deep and I don't have that annoying straight pipe clap.

Hooker aero chamber 3 inch. Offset like the flows good combo for flow and actually quieting a car down. My neighbor thanked me for using em. Lol.

I had glass packs on my 95 vic. Car sounded great. On my 2011 vic I had borla s types. To those that say borla doesn't drone you're wrong lol. Car sounds good tho. On my 2020 mustang I have the corsa double H sport catback. Absolutely no drone and great sound. I'll be adding catted long tubes soon so it'll be a tad louder but not crazy loud like the extreme system.

Every 3 more decibels the sound DOUBLES.

I ould like to see this test with Walker Dynomax. They make great hp.

And the high flow Cherry bomb see through muffler outdoes them all..

I like my borla ,2 in 2 out with built in x pipe.

15 years of experience... when you test 2 types of catbacks I suppose you need to take a look at the map tune as well, right? If you make it richer/leaner or messing a bit with the timing, maybe the outcome will be different. It's obvious that just replacing a part will not bring any performance, especially for an NA engine.

Flowmasters!!👍🏁

Any dyno runs with Porter steel pac mufflers? Or big single pipe exhaust ie 3.5” - 4.0” vs dual.

id like to see what factory mufflers do like on the ford raptor or GMs 6.0 trucks and dodges gasser truck

so the trush hushpower is a turbo style muffler and the magnaflow is straight through, it would make less power because its more restrictive. it would have been a better compairison if they used the thrush welded chambered

Can you please do a draw through turbo setup be interesting to know the pro’s and cons with power lost or gained ? 😊✌️

honestly I really want to see someone dyno a spintech compared to a straight through design.

easily the best is the Walker Super Turbo. quiet and powerful

Spintech!!

Super 40s/44s in fox for the win. Newer Stangs... I like the borla attack sound.

Have you guys done this one yet a polished head is less horsepower than a rough surfaced - this is what i hear from motor builders here in the northeast

I’m a fan of the Cherry Bomb Pro muffler. Flows great for a budget muffler.

How about an Exhaust Test for the 3.6 Pentastars Challengers and Chargers and 300m

Test some cat backs. I love my hks 5 inch now i wanna know

Buy the biggest MagnaFlow mufflers that will fit with straight through exhaust, because these mufflers are the quietest, and then add vibrant industries resonators to the very rear of the exhaust pipes which knock out tons of sound and still flow through no baffling in the system, they will never hear you coming or going.

I'm looking for the rite muffler for my monte ss. I think I'm gonna go with the flowmaster 10 series

Always been a fan of Magnaflow, but only ever had 4 cylinders.

You guys know Jones, Cherry Bomb, and Flomaster FX make the exact same stainless muffler with a straight threw design that are half the cost of a Magnaflow right? They all have the same part number even, with the exception of a extra number or letter, 1229

What kind of muffler should I use for my st it’s 3.0l tt ?

What about a short exhaust. I am running ported manifolds facing foward. 468bbc 500 hp

How much power will a single 3 exhaust handle? I have a RCSB Silverado with American Racing headers and y pipe. It has a flange for single exhaust. The problem is the 550hp Stroker LS I’m building for it! Will I choke it with a single 3?

I am looking for 2 mufflers ; single inlet and single outlet for a 2017 Jeep Compass ; don't like the 25 1/4 in. Muffler . I want 2 mufflers mounted in stock position but sounds like a dual setup with a no more than a 4 1/2 in . spacer between the two mufflers. I need to modify the lower valiance to put the second outlet so it looks like it came from the factory. Jeff Cagle

Try glass packs, old school, straight through.

I feel like this is opening pandoras vox considering just mufflers. 8m thinking that inner volume will make a difference. If you want quiet it should be bigger ro get same numbers is my thought process. Intresting isn't it?

I just got an "Ultra Flo" muffler from Dynomax, and it's a straight-through design, with a stainless steel shell.

Why you no run fitech or Holley sniper on your tests??

Should have tested the flowmaster outlaw muffler

Can those headers fit a 98 tahoe with a 350 vortec ?

...maybe I missed it, he said the thrush was cheap and 3" but not what made it different? Looking online they appear to be "turbo" style mufflers with a perforated 2 pass and chambers at both ends. Seems like that was what made it drop power. I don't think cheap is the issue, you can get cheap straight through mufflers :) Thanks for posting this, it was fun!

I would love to see a muffler test on a engine that makes over 1000hp specifically 1100-1500hp with 3.5"-5" mufflers

I have a built 355 motor its pushing about over 500hp has mild racing cam and hooker headers what's the best duel exhaust mufflers Install?

Bring back motor trend in Australia

As I recall from old David Vizard books, you need 2.2 CFM per horsepower, as it relates to exhaust flow, for a near zero loss system. It’s not rocket appliances

can you run exhaust + muffler ?

There are more perforamce mufflers out there for the street use than just the two they used. They couldve used the hooker aero chamber ones, bullet mufflers, carven mufflers, etc.

I have a Crown Vic P71 2009 100k miles. Which Flowmaster would be my best option for better performance without the Raspy sound? Raspy belongs on the racetrack not on the street.

I love my borla crate muffler on my 2013 GMC Sierra stock 5.3 it has a really nice growl. Ran me $250 each I have a true dual set up. Borla for the win its quiet at crusin but when you step on it it’s loud

You should do this with 4 cylinder turbo engines

Why not use the flowmaster 40 instead? Better yet the super 10.