Flowmaster Flow FX VS Flowmaster 40 Series Muffler Face-off

Found these for under $100!
Flowmaster 40 Series
amzn.to/3TKiHIm
Flowmaster FLOW FX
amzn.to/3lFe3z4
Check out our other Muffler Video
• C10 Muffler Sound Off!...

[@mattvineis]

Of these 3 I like the flow fx. I hate current muffler pricing.

[@KevinKolvenbach]

Truly appreciate you going through the effort to test these three mufflers. I 'was' stuck between the 40 series and the FlowFX, but your video was extremely helpful in making a choice. They BOTH sound great, but for 1/2 the cost, I the FlowFX will be what I'm going for. Again, thanks for posting :)

[@joshuajones5396]

I was skeptical at first, but those last ones you put on, sound way better. I was certain that the 40 Series were the ones to get, but those fx sound better at idle, and a bit more aggressive at all rpms. Nice job! 👍👍

[@ukasz4687]

I bought flowfx recently as a blind purchase and after seeing this vid I can"t wait to have them installed

[@haydenstorm7517]

The flow fx were the beat in my opinion. Sound was good with a lower cleaner tone than the other 2. Also stainless steel and only $50 is hard to compete with.

[@devonhuff7317]

I just had the single in dual out FlowFX installed on my 5.4 F-150 and I love the sound of it!

[@DjP2379]

I have a set of the Flow fx in my 03 chevy 6.0 with cats delete, 3” pipes … and they are loud at high rpm. But sound damn good.

[@Our_America]

Where have to place fx ? Close to cat or close to exhaust tip ? I deleted both mufflers vw jetta 2.5L but still have cat and resonator.

[@frankboet1]

This video was perfect timing. I just bought Patriot long tube headers and need an exhaust system. The muffler shop tech recommended the FX over the 40 series. I agree. I'm going with the FX! Thanks for the face off.

[@blinddiecast]

these comparison videos are genius bro

[@shemwhitehead9517]

I definitely prefer the Flow FX best.

[@dvjracing5947]

All sound good of course. Having just went from the super 10's to the flowFX myself, you cant beat the flowFX. Cost and actual flow performance are the best perks, also slimmer body for space restrictions.

[@heshtesh]

Just ordered my 3.5" Flow fx earlier today, glad to catch your video to confirm I made the right choice. I would like someone to tell me of a better "race" muffler for me to preserve my 641 hp. through?

[@djjoser]

0:57 2:01 2:54

[@theshark2804]

Yep. I’m getting the fx

[@sp-xx8ty]

Super 44 is my favorite out of all the chambered mufflers they are deeper tone then the 40. The fx is better for power and less noise and rasp.

[@joethomason4748]

I like the fx better

[@bobwilson758]

All 3 types sound good ! I like em .

[@315reelffishing7]

I just got the flow fx for my dakota price is good

[@budget_hobbies87]

Love the Phantom grill

[@GM_Junky]

Thanks!

[@Always-Coolin]

Too each their own! I just put the new FX straight through Flowmaster muffler on my 5.3, and I hate it. 650$ down the drain. That was the cost of material and installation. It sounds like "F"actory e"X"haust. My 40s fell off and I want them back on ASAP. My Bitch got to be screaming.

[@rickrobbins7171]

Rick from Summerville SC. the fx I liked!!!

[@edwin97a]

Definitely the Super 40's!...Super 40's for the WIN.

[@RobertSiwik1968]

I actually like the sound of the super 40's but they are the most restrictive mufflers.

[@FirstnameLastname-pe5ib]

Super 10 for an old school sound. 40 for a period correct sound. Flow fx for a more modern sound.

[@randy1ization]

your transmission has a flare shift . put you a shift kit in it.

[@louielee30]

40 Series Sounds the best

[@carlomagnotm]

Luv them all! But FX sounds to me to be the 24/7 city/off road choice

[@frankieprado3211]

Awesome video!

[@GM_Junky]

Thanks!

[@stephendavidcavuoti6548]

Flow Fx I liked !

[@MeanMazi]

That truck starts faster than a Tesla 🤣

[@Nardage]

He must have advanced the timing

[@heavymetalworks6375]

I like the 10's the best then fx

[@aldemarorodriguezbass]

Flowmaster FX cool!

[@ricksgt2012]

Flow fx is my favorite.

[@Our_America]

Do you have cat and any other stock muffler? Or you deleted all ? And where have to place fx close to cat or close to exhaust tip for better sound ??

[@nickcox2568]

The flow fx is the best hands down,but they would all sound better if you tail pipes all the way back!

[@jacoblopez8350]

1:34 2:32 3:27

[@escott1140]

Flowmaster FX👍 Thank you for the video

[@ajakarr]

Thanks

[@AS-vk4kf]

40 is the best sound, the glow fx second and is less restrictive

[@shondee7864]

For a proper test mufflers should be welded in as recommended by manufacturer

[@hvspeed6102]

Appreciate you going through all the effort to make the video. Question, did you have any added tailpipe to the outlets of the mufflers, or just as their shown on the tailgate? Thanks.

[@GM_Junky]

There was no pipe added to the outlet of the mufflers.

[@hvspeed6102]

@@GM_Junky cool, thanks

[@michaelgalvez8300]

40s

[@joefucciodotcomm1126]

FLOW FX ... !

[@raulelizondo7345]

Thanks man found the one I want

[@evgenysimonov1980]

Отличный звук! Хочу себе аналогичный звук на 4l., АМС242 Jeep XJ !)

[@AS-vk4kf]

that 40 though maaaaaaaan, but i bet you get more performance out of the fx

[@evgenysimonov1980]

Как будет звук если поставить последовательно Glasspack далее Flowmaster 40 или 44 серии ? Пробовали?

[@Legendary_Frank]

Sounds like a fox body with supers

[@josephjackson7651]

Great truck, Vid, appreciate your work...what size tires are you running

[@GM_Junky]

Thank you! We are running 245/35r20 on the front and 245/45r20 on the rear.

[@j_mm1084]

Fx gave it a nice smooth tone 👍

[@tyroneelder8241]

Super 10 all day

[@user-td8uh9yq4j]

I just dont like the 40 series sound on most things

[@DanielPMurillo]

flow fx

[@jesusescobedo1191]

I. Like. Better. The. Super. 40.s. God sound.

[@Sncedayone]

Don't these people know never order car or truck parts off Amazon??

[@David-rx5eo]

I don't like any of them, because I like quiet cars/trucks.

[@tpz7618]

The FlowFX series is total garbage, how can anyone like the sound of a child blowing raspberries? Man up and go with a 40 series if you don't mind everyone looking at you or 50 series like me if your over 40 years old...LOL

[@heshtesh]

I'm 64 and I ordered a set of 3.5" Flow FX today for my 94 Sonoma, wonder if you could explain to me how a set of 40 series with multible chambers is going to be able to retain my 641hp. going thru them compared to the straight thru design of the Flow FX?