Difference between flowmaster 40 series mufflers..

[SilverBullet00]

So I am looking at getting an "american thunder" catback to replace the SLP. It looks like they come installed with "super 40" mufflers instead of the original 40's - what is the difference between the two? I have been told the originals are the ones to get, but the only way to get them are to have them welded in. I dont think my SLP catback will allow them to be installed very easily because of clearance issues. Anyone have an experience with the super 40s?

 

[fatboy02gt]

super 40's have a deeper tone but are not near as loud as the originals. the flowmaster kits are always quieter than just using the mufflers in other pipes.

 

[SilverBullet00]

Well that sucks....

 

[Mossberg]

My super 40s seems to be just as loud as originals from the outside, but quieter on the inside than originals somehow.

 

[Seraphitia102]

I have the Flowmaster catalog and it describes the Super 40's as an aggressive sound but with lower interior and exterior resonance than the original 40's. The Super 40's are Gen 2 Delta Flow mufflers which are essentially quieter.

 

[mineralgraygt]

just get mac mufflers

 

[EPIK]

I wouldnt replace your all stainless SLP catback with an aluminized one. Flowmasters sond good, but they rust inside after a few years, & have too much drone IMO. Get some regular Magnaflows welded in. they are all stainless & sound the best to me. They dont have much drone at all because there not Chambered like flows. Me personally, I will never use flows again unless its on a classic car, because they sound perfect on those. & even then I would only get the stainless versions.

 

[86bluecobra]

I wouldn't replace stainless stell with aluminized either. If however you were going to get stainless steel flowmasters then that would be a good idea.

 

[four six]

Ill give you my American Thunder Flowmaster catback for your slp and Ill pay shipping

 

[EPIK]

I wouldn't replace stainless stell with aluminized either. If however you were going to get stainless steel flowmasters then that would be a good idea.

I agree, only because SLP's are extremely loud. But none of the Flowmaster catbacks come with the stainless versions. Cant go wrong with Magnaflow.

 

[SilverBullet00]

I would love to keep it all stainless but I want a chambered muffler. I would get the SS flows welded in, but the way the pipes Y out, the mufflers would be right under the rear subframe which would kill ground clearance and probably rub on the frame.

 

[subtlebeast]

Check out the super 44 too. I just picked up a pair, but they won't be on for a bit since my motor is not done yet. They are supposed to be there best flowing two chamber.

 

[mustangman9812]

Anything > Blowmaster

Get something other than a Flowmaster PLZ. Everyone and thier Brother with a stang has them!

 

[RedDaemon]

why not just get the SLP PowerFlo mufflers?????? they bolt right in where the resonators would be

ur chambered needs + stainless steel + fitment assurance = done deal

 

[SilverBullet00]

why not just get the SLP PowerFlo mufflers?????? they bolt right in where the resonators would be

ur chambered needs + stainless steel + fitment assurance = done deal

The current resonators are welded in... could I cut them out and clamp in the powerflo's (in case I dont like them)?

 

[RedDaemon]

The current resonators are welded in... could I cut them out and clamp in the powerflo's (in case I dont like them)?

if the clamps/flanges are still there

 

[Dragstr05]

Anything > Blowmaster

Get something other than a Flowmaster PLZ. Everyone and thier Brother with a stang has them!

I love my flows.

Perhaps you should take a vote - everytime someone asks about exhaust around here the majority all seem to say magnaflow, yet almost anything sounds better to me than magnaflow.

 

[RedDaemon]

I love my flows.

Perhaps you should take a vote - everytime someone asks about exhaust around here the majority all seem to say magnaflow, yet almost anything sounds better to me than magnaflow.

might want to reconsider:
http://youtube.com/watch?v=vrUt1h17gEs&mode=related&search=

 

[EPIK]

I love my flows.

Perhaps you should take a vote - everytime someone asks about exhaust around here the majority all seem to say magnaflow, yet almost anything sounds better to me than magnaflow.

Magnaflows with my MRT catted H sounds perfect to me. Smooth but with a deep tone. I like flows on 5.0's. To me flows & off road x on a long drive = headache

 

[AmBo]

my flows and catted bassini X on the highway is a headache. oiy! lol