Flowmaster 4in Merge
 

What are your thought's on them? I have seen up to 10hp gains on some H/C/I LSx cars compared to something like a pacesetter y-pipe. I'm throwing around the idea of having one installed with a knock off single chamber muffler in place of my current bullet.

Thoughts?

Damn thats what i was gonna run!:bigthumb:

the single chanber would lose the power you pick up with the y