My dad has an 02 GMC Sierra, hes wanting to start moding it up. hes not too up to date with new technology mods. I told him a hypertech, cold air and exhaust would be a good start, what are your thoughts, what brands are best? As for the exhaust nothing super loud he is old. What are your thoughts on corsa?

Thanks in advance?

 

Heres a vid of my truck with factory cats, x-pipe, then dual borla pro xs mufflers.. its quite at idle and crusing, but sounds mean/throaty when you open it up... especially in the higher RPMs.

http://home.stx.rr.com/jasonline/silverado.wmv