Flowmaster Vs Magnaflow Explained 

The old man at the muffler shop highly suggested magnaflows , said the high school kids usually go with flowmasters

I have a Magnaflow on my ‘99 Yukon. Has a nice throaty idle and throaty acceleration. Nice and quiet inside the cab. Finally rotted out after 19 years so I purchased another one. Great sound!

no need for loud background music..

Love the explanation between the flowmaster vs magnaflow. The exhaust depends on it.

I went with Magnaflow on my 5.7 V8 Tundra and I’m really glad I did. I did not want an aggressive sound. I wanted just enough kick to tell you a real V8 is under the hood. I got exactly what I wanted.

I have a Flowmaster 50 Series Delta Flow on my 2020 4Runner and it is perfect sounding. Nice back ground rumble at idle, nice mechanical burble when I accelerate, np drobe on the highway. This is the 2nd vehicle I've put a Flowmaster on. The first was an '09 Toyota Matrix with the 2.4L. Did a full custom 2.5" exhaust with an 80-series. She was loud!

Got a Super 40 Flowmaster on my 2001 V6 Sonoma and it sounds a whole better than stock, and it actually has improved the mileage and not to mention Flowmaster is the least expensive compared to the Magnaflow or Borla.

Simple clean explanation. Thanks! I understand that the magnaflow would sould better on inline 4 Honda's.

If you care about power stay away from chambered mufflers. Had to chop plenty of flowmasters on the dyno. On a stock silverado with cold air and decat it went from 287whp to 303whp by just cutting the 40 series off and made more power across the board.

Pretty damn happy with my 18" Magnaflow + resonator deletes on 2019 Silverado. Beautiful low growl cold start and accel tones, not obnoxiously loud, very little idle speed drone. Paired with KN cold air intake its butter. No tin can noise like with Flowmaster. I Just want the same tone but a tiny bit louder. Considering Magnapack glasspack, or Cherry Bomb glasspack.

Magnaflow may give more hp! That Flowmaster has baffles which restricts and cuts ur power down... Sounds meaner but actually may slow u down a tad. For speed, long tube headers and offset or straight through muffler... Doesnt matter the brand really.

Your comment at the end "if you have a v8 just get the flomaster". I have been going back and forth with either a flomaster, borla, or magnaflow. Thank you.

Are you serious man It's not going to depend on what engine you have which one makes more power The magnaflow is a straight through flow design with no restrictions It's going to make more power on everything

I've used both brands on many different vehicles (mostly GM V8s). I'm team Magnaflow! My #1 reason for 'performance' mufflers/exhaust is PERFORMANCE (not sound)- minimal restriction, maximum horsies, potential MPG. Magnaflow is straight-through and dynos prove their superior performance over baffled type like Flowmaster, Flowpro, etc.- especially in forced-induction engines where maximum flow is vital. My #2 reason for performance muffler is sound quality. Magnaflow (and similar designs such as Borla and ALL sportbike performance exhausts) delivers a smooth, deep tone resembling a more expensive machine (more refined, deeper, usually quieter) without the hollowed out banging on a metal trash can sound that a hollow, baffled Flowmaster (or FM copycat) usually offers. There are exceptions, both brands offer multiple products (I had a quiet and refined Flowmaster 70series on a Limousine in service), and I've had rowdy (typically smaller) Magnaflows, but the opposite is usually true. I currently have a GMC Envoy XL with a 5.3 V8 (LS-327 BABY!) with several performance goodies including cat-ectomy. Without the kitties to smoothen and quiet the sound (and popping) it is imperative I have a smooth refined sound like Magnaflow! But "Mo powaa babeh" is the main reason.

I've run nothing but Flowmaster on all the vehicles I've owned. I love the sound of them, I had a super 40 on my 96 F-150 302. It sounded like a 5.0 foxbody. On 04 Dodge Ram 1500, with the Hemi it came with a Magnaflow muffler. It didn't last long. It got a super 40, then a 44, but I wanted more aggressive. So, a Super 10 was the answer. It sounded amazing, like a truck should sound. I like this muffler so much that when it was time to buy another truck, the Super 10 found a new home on my 20 Ram 1500 with the Hemi. Sounds like a muscle car.

I agree, they should have a good muffler on from the factory!👊

Great video bro you went straight to the point👍🏼 Thanks I'm definitely going with the flowmaster on my fbody camaro💯

Flowmaster and Magnaflow are always the two I choose for exhaust

Magnaflow = Sophisticated Deep V8 Sound Flowmaster = Loud Old School Muscle Car Sound

I need to tone down my hemi ram for cold starts.....my eBay exhaust has a through style muffler but after 2 years it's pretty loud and drone can be loud. I am thinking Large magnaflow to quiet things down....

I think the description is of the difference between a chambered muffler vs a flow thru design as now both companies sell both styles.

Flowmaster Flow FX is built just like that Magnaflow!

I've actually had several Chevy trucks with both flowmasters and magnaflows on them. I prefer the magnaflow

If you want to sound like you gained power from a muffler go with flowmaster. If you want to maybe gain a few horses go with magnaflow. Either way exhaust doesn't really add much besides noise, and you lose way more with baffles over straight through.

I have Flowmasters on my 69 442 Conv. Sounds awesome.

I so agree been using Flowmaster for 20 plus years had 1 V8 with Magnaflow so disappointed ☹️

Yup, I can confirm this mans words. Have FM on my Camaro and MF on my Tacoma, they both get compliments. People think my Tacoma is a Subaru pulling up lol

Installed the magnaflow on my 2022 V6 Camry. Love the sound.

I thought Magnaflows had stainless steel and rockwool filler not fiberglass?

Flowmaster is tin can 65 mustang with no compression. Magnaflow is deep rumble

Luv my Flowmaster Flow FX Straight Through muffler on my Ram 2500 4/4 Hemi 💪

I love to see j, the dude who actually worked on my first chevy cobalt ls exhaust. Keep it up brother

I had a FlowMaster on my old Ranger that had a 4.0L V6. Im saving up for a FlowMaster FlowFX dual exhaust for my 23 Tacoma TRD Off Road with the 3.5L V6.

Flowmasters sound like rocks rattling inside a coffee can.

Magnaflows flow far better than Flowmasters.

now this is a video straight to the point no gimmicks, if only that background music would have been lower

Get magnaflows if you want the sound of a playing card in bicycle spokes. They are horrible at high rpm.

Straight forward...love your attitude in sound review. I was torn between manga flow or flow master for my 5.3.. but flow master it is ..for the love of god!

Just depends on the overall set up for me.

I had Flowmaster American Thunder in my 98 Ram 1500 with the 5.2. It rumbled. Flowmaster didn't make a cat for it, that was where Magnaflow came in. To top it off, Holley branded ceramic headers.

In my opinion, old school motors prior - early 2000 deserves the flowmaster. After that, the type of muffler you choose depends on what your looking for. Anything later than 2000 it could be flowmaster, magnaflow, corsa, borla...

It would be a better video if the background music was not so loud, I could barely hear him

I did weeks of research for flowmasters but they were too wide and magna flow is bit smaller and definitely definitively more muffled easier to live with on daily or even weekends and no drone

He's right about the flowmaster my 94 v6 Ford ranger 4.0 sounds like a V8 and a lot of people mistake it for a V8 swap

who makes a muffler video and doesn't post the two sounds?

I HAVE FLOWMASTERS IN MY 1989 NOTCHBACK 5.0 MUSTANG. MY WIFE IS NOT A CAR PERSON. WHEN I TAKE OUT MY MUSTANG AND PULL IT OUT OF THE DRIVEWAY. SHE SAYS THAT CAR SOUNDS LIKE A PROFESSIONAL RACE CAR. THOSE ARE HER WORDS. FOR THE SOUND IT'S FLOWMASTERS ON A 5.0. YOU WON'T GET THE SAME RESULTS ON THE OLDER CAMARO/CORVETTES. BECAUSE CHEVY USES A DIFFERENT FIRING ORDER FROM FORD. THE LS USES A FORD 5.0 FIRING ORDER SO YOU WILL PROBABLY GET THE SAME SOUND.

Got a 6.0 silverado 1500 vortecmax..already pretty loud. So now I need to figure out what to do as I'm buying a whole new exhaust system for it. My brother says magna but Flowmaster is $50 cheaper as far as the 2 im looking at

When did Magnaflow switch to fiberglass fill? I've always known they use rockwool packing as it lasts 5x longer than fiberglass.

I have 5.4 wimple supercharged F150 harly..and the cat back magnaflow kit sound so deep...i fully recomended!!! If you like the old school and the crispy crazy sound go flowmaster...if you like an elegant deep sound go magnaflow....it's simple

I dunno, I just built a supercharged 350 for my '46 Chevy truck and they put some small Flowmaster's on it....the sound is LOUD, abrasive, raspy, intense and just excessively obnoxious....sounds like a dragster which is cool at a car show or at a meet but not for daily driving. Everyone is telling me to go to Magnaflow because it's quieter and still sound great at the low-end but opens-up and blossoms with the higher rev's....think I'm moving towards Magna's or maybe much quieter/larger Flowmaster's. This guy said to do Floowmaster's for sure if we have V8's so I dunno; decisions decisions!

Might sound dumb but I wonder what a combined exhaust would sound like. I have a 91 F150 with a 4.9L straight 6. Y pipe into a single 3" straight through cat, I'm thinking a flowmaster super 10 followed by a magnaflow 5" round body 14" muffler.

The Magnaflow will get louder over time as the fiberglass burns out. The Flowmaster will stay the same as there is no fiberglass to burn out.

I have a 2008 F150 Harley Davidson.. The shop put a smaller magnaflow exhaust on my truck because they said it would give it a deeper growl. Did I waist my money 😢

I installed a flowmaster on my 08 sierra 5.3 sounded like a hair dryer when i floored it now i have a straight piped with magnaflow straight throught my 5.3 sounds perfect to me now

I got a Mazda b-series/ranger V6 from what I'm seeing a 2.5 pipe is plenty big enough. the Flowmaster is quieter than the Magnaflow but the magnaflow produces more torque and HP.

I ran flowmaster 40s for 20 years and switched to magnaflows because the flowmaster drone gets old after a while, especially since both my Chevys are catless with true duals. After the magnaflows break in, they will get a little louder and sound pretty good without the drone. I tow alot and the old school flowmaster 40s give me a headache after towing for a few hours, BUT...if you still have cats, the drone from the flowmasters won't be that bad.

My magnaflow on my 1994 Chevy 5.7L tbi is aggressive and loud flowmasters are weak

Truth is, you can't just compare two brands like this. That's like me saying Michelin is gripper than Goodyear. Maybe sometimes, but what model? But in essence, you're saying the glass packed one is quieter than the chambered one, so that's useful to know.

i have watched several opinions on youtube, yours is the very best! thank you,,,,,,,,,,,,,,,,

That doesn't explain the differences in the flowmaster serie 10, 40 & 50. Big difference in sound

i feel like flomasters make everything sound like a drony 4.6 mustang differently not a big block😂

I have a Chrysler 300 v6, it's not an 8.. but it is what is.. What Magna flow do you suggest I run with? should I also do the cold air intake as well?

Dual flowmaster on my old school. Spintek on the 5 3 Silverado.

Factory flowmasters is fudging right!😅

What if I put a flow master on my dodge dart what u think would it be louder then it was

Flowmaster can make anything sound good. A friend has one on a slant six and it sounds nasty idling.

What magnaflow size do you recommend on 12 model sierra 5.3l? 11 inch magnaflow?

So does the flow fx Flowmaster compare more to the 18-22 magnaflow since it is also straight through?

I have a magnaflow on a 5.7 v8 the 350 motor and that aggressive as heck Idk what you talking about it all depends on your set up

i find the flowmasters sound tingy though straight flow mufflers sound a lot more smooth and give it more of 50's sound

Might put flowmasters(model tbd) on my vr6 passat. I think it would sound nice but of course no way of knowing when nobody else has done it afaik.

i'm going to put a 2.5" magnaflow on my 1992 7.5l 460.

I find chambered mufflers sound hollow and all sound the same not sure what I want

I'm getting the magnaflow 14158 for my accord.

Ford F150, 5.4 triton. i want Single exhaust, so Flowmaster Super 44 or Magnaflow?

Never liked the flowmasters, sounded more like you bolted a coffee can to it. Put a magnaflow on my 6.0 sierra and loved how mellow/drive able it was.

When it comes to horsepower numbers, the Flowmasters are rated at the bottom of the barrel of high dollar mufflers! Hooker Max Flows are rated even better, but Magnaflow are amazing mufflers!

I disagree completely! The Magnaflow is straight through, no restriction. He even showed it. A muffler with baffles causes restriction therefore less power. But he sounds like he knows what he is talking about so that's all some people need. Magnaflows tend to get a little louder after a few months of use.

I would love mild from the factory

It seem like the flowmaster chokes the life out of the 5.3l?

I have a 2017 F-150, 5.0 V8... I want a nice, deep, noticeable sound outside, but minimal drone in the cab. I don't want it to be obnoxious, but I definitely want it to be noticeable with my foot in it. Which exact muffler do I want? And keep the resonator, delete it? I just can't decide.

My magnaflow makes my truck turn heads like crazy

Very informative video. I will definitely be getting a Flowmaster.

looking at magnaflows, I don't want db, I just want a little more rumble. so many vids on here are of really modified vehicles that are aiming for loudness. I'd like to know what these sound like on a stock LT1/ 1995 Buick Roadmaster Estate but it's difficult to find any examples. hopefully keeping the resonators on will help prevent drone at speed and they don't get too loud over time

Had my Flowmaster for 1 year and already rusting out

I like the flow pro max..nice muffler

Flowmasters suck. Too much back pressure. Heads up magnaflow uses stainless wire mesh not fiberglass. Also a magnapac sounds great no clapped out sound like a flow master

Sorry but Flowmaster doesn't give the power that Corsa does for my car. The dyno doesn't lie . A 2.5 Corsa flows better than a 3" B&B with an x pipe. Corsa uses wave cancelation to get rid of resonance . If you don't mind loud and a lot of resonance the early B&B systems had very free flowing mufflers. At wide open throttle the Corsa is also loud without the resonance.

What the best exhaust to increase mpg?

Magnaflow if you want to keep your hearing and not get droned to death

I have that magnaflow muffler on this ⬅️ along with the high flow cat. 2inch all the way back. Little 1.6l deep, punchy and buzzy!

Would this be good for a 4.0L OHV V6 Ford engine?

which muffler you recommend for honda civic?

Mbrp or flow master which one Is better

Hate flowmaster. They're obnoxiously loud in the neighborhoods, have a deafening drone on the highway, and basically just scream that it's an attention seeking mall crawler that's never seen a bail of hay or a shovel in their life. Same for the driver.

I love Magnaflow. Lots of options from mild to aggressive. Nothing in my opinion could sound worse then Flowjunk chambered style mufflers. But, we all have our likes and dislikes.

The worst thing about Flowmaster is cabin drone. If you want to hear your radio, choose something else.

How do you keep a deeper exhaust sound even while accelerating wide open throttle? Seems like they get all get chattery like slapping two boards together or something at wot

I prefer the sound of Flowmasters but have heard that the Chambered design disrupts flow and can actually reduce power compared to the straight through design of say Magnaflows...is there any truth to this?

If you’re trying to gain horsepower from mufflers.. you need to be looking at other mods