[Dfal68]

Hello everyone, my first post and I really need some help. I have a 2SS and I had 2” headers put on with cat delete and I already had an axle back system. Let’s just say it’s really loud like I’m sure some of you already know. I’m looking to quiet it down a bit. I tried putting the factory muffler back on but it really sounded horrible. By the way I do not and I’d not have factory NPP. Any suggestions for possibly a different type axle back that may be less aggressive? J have the AWE touring system now and it’s really just resonators. I was also thinking about aftermarket cats? Any suggestions would be appreciated! Thanks!

[jaybee924]

Might want to try Borla S-Type NPP or get the Hooker NPP with with the bigger muffler. Headers with any aftermarket system is going to be very loud.

[jaybee924]

It would be nice if AWE made a NPP/valved system a lot of people would be all over it. I know I would. I think more people then they would even imagine. But they've made it pretty clear that they are not going to make a NPP system for the Camaro.

[gtfoxy]

There’s a thread where people have used the Borla dual In/out before the diff that say it worked pretty well.

[Aaron07]

High flow cats will help some, and as mentioned Borla makes a sweet piece, part # 60608.