quietest exhaust for 600+rwhp
 

I'm working on a TVS supercharged Camaro at the shop right now.
It has JBA long tube headers, small cats and stock exhaust.
Engine has forged pistons,rods,and crank.
We are checking the motor out and upgrading the valvetrain for something more TVS supercharger friendly.It still ran the stock valvesprings and trunions :crazy:
Currently the boost is set at 10-11 psi.Will probably keep it there for now.

I know I have to remove those darn cats.
Did anybody have made 600-650 rwhp (M6) with the stock exhaust?

Or is their something else that is out there that would flow better,but also as quiet? Customer does not want to draw attention.

Just asking for opinions.

Thanks in advance.

My Corsa is very quiet at idle and cruising yet sounds different and to me a lot better than most exhaust I've heard personally. At WOT it gets LOUD.

Thanks DarkCry956.Corsa is a great exhaust.Do you have the sport or the touring model?


Worse case.Could even install a L99 exhaust instead. But will the performance be there????

Magnaflow street is a tad quieter than anything else out there, but just a tad. The car will be loud:nod:.

I'm running 2x3" ARH's and the quieter borla series axle-back, everything in between was custom made and also have cutouts...So I get a nice growl for when I don't want to be bothered by the police, and insanely loud when I want to give myself a heart attack.

Either way, unless you really muffle down the entire exhaust, it will be "loud" to a certain point at those power levels.

Solo Mach XL J pipe system is reasonable at light throttle under 2k rpm with headers, catless. It barks loud WOT though. I love it as there is zero drone now. I had a 3" MBPR system x piped and swapped out the x for the resonated H and the drone still killed me 1400-1700 rpm.

As was posted above, it's gonna be loud under load no matter what. My wife commented on how much quieter it is now, she doesn't hear me leave or come home like she used too. The j pipes really work at low RPM.

I got the regular Corsa for an L99. I don't think they had touring or sport when I got my setup. I think sport and touring are for the ZL1 actually but I don't know. I've gone from long tubes to Cam to Blower and its always been quiet at idle and cruising.

+1 on the Solo Mach XL exhaust, I have LTs with my Maggy. Mellow under 2K and at idle. When you get into it though it has a very nice clean tone, one of the best i've heard.

I know its not a camaro, but my buddy has a twin turbo V8 lexuas SC400. He was the same way to where he wanted to keep it quite. So he has no cats on the car, but lined up 6 total mufflers (3 on each side). Now its got a little rumble to it, but is super quite. He put down over 550whp with it setup this way too. So it can be done, and i am sure if he took a few of the mufflers off he might make a little more power. But it amazes people how quick the car. My camaro stock with stock exhaust was louder than his car.

Magnaflow street series + magnaflow x resonated pipe + ARH 1 7/8 LT+ custom j pipe and my LS3 (830 rwhp) is super quite.. All i hear is the d1 pulley turning...

I have the stock a6 exhaust with 2" headers no cats. Quietest possibility at that hp..

I kept the stock mufflers, quiet as a church while cruising, Loud enough when you hit it.

NPP and keep it closed with an ADM module or stock mode for permformance.

Yea stock but that will rattle a bit. I went with Borla Touring exhaust. With my Kooks 1 7/8 headers and off road pipes it sounds good not to loud but dose come alive at WOT.