I have a 2k with place racing CAI and budget y pipe...i wanted to get an estimate of how much horsepower and sound i would be likely to gain with each of the following... (keeping in mind i have, and am keeping, the stock muffler)

1. Hotshot Headers
2. Budget B Pipe with resonator
3. 1 and 2 combined.

 

i heard header give u 18-20hp gains...the b-pipe will give u minimal maybe additional 1-2hp...so say roughly 18-22hp is about right...

 

You'll get no more than 10HP from the headers. Never listen to manufacturer's B.S.