i'm in haynesville louisiana i run my truck at red river raceway in gilliam louisiana i'm looking for other silverado ss owners in the area get back at me would love to meet up thanks
i have a 2003 silverado ss with a magnaflow muffler only. I ran a 15.41 at 89.11 mph. how much will i progrmming help me? Also wandering about gibson shorty headers. Any advice from experienced owners???