I HAVE A 2003 reg. BLK LS SILVERADO WITH A 5.3 IT HAS 5000 MILES. IM READY TO BOLT ON SOME HORSEPOWER IM GOING TO USE LS1 EDIT PROGRAM AND 410 GEARS IM WANTING TO ADD INJECTORS & a T BODY AND WHAT EVER IT TAKES TO PICK IT UP AND LET IT BREATH A LITTLE BEFORE I SUPERCHARGE IT. DOSE AYNONE HAVE A GOOD SET UP FOR BOLT ON HORSEPOWER FOR A SUPERCHARGER.WANTING top of the line parts thanks.bang

 

Call Tbyrne(sponsor on this site) and get in on the AS&M header GP and get you a set of the headers at a discount. Also replace the restrictive stock exhaust.