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sleeper Mufflers for my 428!!! help me decide!

4.6K views 18 replies 15 participants last post by  red93notch  
#1 ·
after going through it i have decided to change my coupe into more of a driver....

one of the most important things is a sleeper exhaust!

what would be the most quiet/efficient mufflers??
most important is quiet in idle.

the headers i am going with will be accufab midlength is 1 7/8 primary.

probably their H pipe also

I also have a set of nice 3 inch tailpipes from flowmaster that i may decide to use... or just get a mac catback in 3 inch...
 
#4 ·
+1 on these. A local guy ran these along with a set of dynomax bullet mufflers just after the the collectors on his 10 sec El Camino and would cruise around town. Hell, 16 sec hondas would be getting stopped left and right and he would never get a second look from our PD
 
#9 ·
I have a stroked 351W in front of Kooks 1 7/8" x3, 3" Prochamber, 3" Ultraflows, and 3" tailpipes. Although it is much tamer than a similar setup with most chambered mufflers I have heard, I do not think I would consider it a sleeper by any means.

Here is an old clip without the tailpipes and a broken in set of 3" Ultraflows.

Here is one of the first startups after putting on new 3" Ultraflows and 3" tailpipes.
 
#12 ·
of all the mufflers ive ran,super turbos were the quietest,then next in line was magnaflows,the magnas are quiet at idle then loud at wot,the super turbos dont hold up as well over time as the magnas.
 
#19 ·
So I went with accufab headers midlength 3 in Mac h pipe(the box) and Mac 3 inch cat back..

I want mufflers that are more subtle than the macs!