Avy2004
Full Member
Does anyone know how much true HP a Flowmaster 40, K&N intake & filter, and a computer tune (Hypertech, Predator) will add to a 04 Z71? Would these be the mods to do first to gain more horsepower?
Avy2004 said:Does anyone know how much true HP a Flowmaster 40, K&N intake & filter, and a computer tune (Hypertech, Predator) will add to a 04 Z71? Would these be the mods to do first to gain more horsepower?
Avy2004 said:...What else can I add for more horsies?