After much thought I am looking to sell my 2003 Chevy Silverado SS.  This was bought new from my local Whiteman Chevrolet dealer new back in 2003 and serviced there ever since.  I have since supercharged my truck with a P-1SC procharger with air to air intercooler along with some driveline improvements.  I had PCM for Less tune my truck out of Reading, Pennsylvania years ago and the truck hasn’t changed or needed any updates in years since it has run flawlessly.  I am attaching the dyno tune fro