E ElGorilla New member Joined Jul 10, 2009 Messages 1 Reaction score 0 Points 0 Jul 10, 2009 #1 I have a 2008 GMC Sierra with a stock 5.3 that have 315 hp. few days ago I put a borla exhaust to my truck, now I see the diference when I hit the pedal, but I want to know how many horsepower the borla give to my truck? some body can tell me!!
I have a 2008 GMC Sierra with a stock 5.3 that have 315 hp. few days ago I put a borla exhaust to my truck, now I see the diference when I hit the pedal, but I want to know how many horsepower the borla give to my truck? some body can tell me!!
L LeAnne New member Joined Jul 10, 2009 Messages 5 Reaction score 0 Points 0 Jul 10, 2009 #2 Perhaps a few more - but I bet it sounds like a 100 more.
