It's official, I hate them

[/\ Vader /\]

Now that I have 4.10's the sound of my American Thunder catback has become annoying.


Can you guys recommend a quieter performance muffler?

 

[yellowstang1994]

Mac Flowpaths, IMO are quieter then AT and still sound great.

 

[1hot5.0]

Mac Flowpaths, IMO are quieter then AT and still sound great.

I'm sorry but I have to disagree. Mac makes one of the loudest mufflers on the market.

If I were you, I would either go with dynomax ultra flows or Magnaflow's. My magnaflows are pretty quiet when cruising around, and scream pretty good when I get on it. There is hardly any drone either.

Just my $.02.

 

[SuperDust22]

Now that I have 4.10's the sound of my American Thunder catback has become annoying.


Can you guys recommend a quieter performance muffler?

What mid pipe do you have. And yes MAC are one of the louder mufflers out there. You can look on the FAQ sticky. It has a muffler shootout telling you how loud the mufflers are. Look into the Magnaflows and bassanis. I think those are two of the better mufflers out there.

Dustin

 

[BlackVert]

i hate mine too because they dron at 2000, exactly where i cruise.

 

[/\ Vader /\]

Just saw a set of 3 chamber Flows Delta Force II, do you think they are quieter?

These will bolt directly in

 

[ef200098]

the 3 chambers are much quieter at cruise and just about as loud at WOT. i have an o/r h and so does my buddy on his 5.0 i have the AT system and he has the delta force. much quieter. but i like the drone of the AT

 

[Labora]

I'm sorry but I have to disagree. Mac makes one of the loudest mufflers on the market.

If I were you, I would either go with dynomax ultra flows or Magnaflow's. My magnaflows are pretty quiet when cruising around, and scream pretty good when I get on it. There is hardly any drone either.

Just my $.02.

I agree. Freind had mac catback was good and loud raspy with a o/r H. I have a dynomax with o/r x and isnt loud at all.

 

[zenboy99]

Magnaflow makes a nice muffler. They had an article in the NMRA race pages where they swapped out an AT catback for the Magnaflow catback, not only was it quieter but they gained 7rwhp on a 5L with boltons.

 

[Mrgreen94gt]

You could also buy a single 3-chamber Flowmaster and replace one of your 2 chamber ones. Someone on here, or another forum, did that and got rid of the drone.

Or, you could do what I did back when I had my American Thunder mufflers. Just drive faster. As long as I stayed at about 65 or so, there was no drone. Still loud, but it wasn't drone.

 

[final5-0]

Magnaflow makes a nice muffler. They had an article in the NMRA race pages where they swapped out an AT catback for the Magnaflow catback, not only was it quieter but they gained 7rwhp on a 5L with boltons.

I would have NEVER thought you could pick up that much gain by switching between those two catbacks.

I figured 10rwhp at the very most would be my gain when I upgrade my stock catback but I don't know for sure

Later
Grady

 

[juiced_94gt]

one more for magnaflows, i traded the at for the magnaflows and it felt like it gained power and even with my o/r x it doesent drone or is loud when cruising but when you get on it it just screams!

 

[yellowstang1994]

I'm sorry but I have to disagree. Mac makes one of the loudest mufflers on the market.

LOL, i guess your right by that db test the got. My friends O/R H and 2chamber Flows sound louder than my O/R Prochamber and Flowpaths so I always got that impression that the flowmasters were a little bit louder. I guess it's my prochamber thats smoothing it out a little bit more then the H to make me think that.

 

[1994Vib.RedGT]

I have stock catback and h-pipe, but 3-chamber weld-ins. These are much quieter than the 2-chambers my friend has on his. When crusing, you still have a deep rumble, but it is much more subtle than agressive. When you nail the gas you still have a nice scream, but overall, they are just much quieter than the 2-chambers, I recomend them, and I think you would be satisfied.

 

[WhiteStallionGT]

Yeah dude, don't go Flowpaths, mine are really loud with the o/r h. I second the magnaflow vote.

 

[Venom351R]

Chamberd mufflers suck the drone is terrible and Mac is not the way to go if you want it more quiet.

Id go w/ Magnaflows. I have Magnaflows w/ an O/R H pipe and BBK Headers and it sounds so friggin mean, not just my oppinion but from what some of my friends have said while curising past them on the interstate or hearing it run at the track. They said it has such a deep tone, it does sound really sweet.

 

[nmcgrawj]

do u guys have delta flow 40's or the originals? My delta flow 40's barely drone at all...