I am installing headers with a catted y and I have the slp center mount exhaust. Next I am going to do A h/c swap. I want the car to be as quite so if these mufflers are loud what is the quietest best performing catback.And the cam will be fat.

 

Look down a few threads. You can also do a search and pull up alot of great info. Hooker and magnaflow would be great.

 

SLP Dual Dual is really quite and flows really good.

 

You've allready got the Dual Dual muffler which is the quietest out there with your CME setup. Changing to anything else will only make your car louder. To get quieter than where your at you might want to look into a Z28, Trans Am, Formula or SS stock mufflers.

 

id go magnaflow due to the fact its stainless

 

if you already have the dual,dual. stick with it. awsome flowing catback.