I'm trying to figure out which exhaust would be best for my application, I'm running a gm stage 3 kit, with nitrous soon. My question is which exhaust would be best, vibrant longtube header and vibrant exhaust, or zzp shorty header, dezod 2.75'' downpipe and 2.75'' cat-back. i ask this because I'm making 250whp now, but when I get the spray I will be making hopefully 300+ whp.

 

I would go witht the Vibrant setup. It will be 3 inches all the way back and you know they will fit well together. I've heard them on a Cobalt, it is loud, but it sounds good. Plus it will be more than enough flow for your power levels.

 

I'd run a 3" system if I were you. Your gonna be close enough to 300hp before you spray and when you do hit the button you should hit 300. 3" WILL NOT be wasted on you.

 

Loving the sig Jackalope haha.