There are Stone Mountain Racing y-pipe and racing headers sold on ebay. Has anyone ever heard of this particular company or does anyone have it installed in their car? If you have, could you tell me if it's good or bad.

 

Are they more commonly known as stone racing ?

If they are, then yes, and yes, but not me.

 

Stone Mountain
Stone Mountain Racing
Stone Racing

All the same.
I have the 2nd prototype from Stone Racing. I like them. But you really need to be aware of the time and money it could take in installing these. This isn't an easy install...and could take a professional mechanic about 4-6 hours to install.

I'm not sure on the fitment since I have prototypes.

 

i got stone racing y pipe and i can feel the gain.

 

I bought the ypipe and header setup, havent installed yet.