Individual Ecotec Valves Universal Exhaust This downpipe also replaces the

This downpipe also replaces the stock downpipe/Ubend and provides increased performance by upgrading the stock cat with a stainless Magnaflow unit

if you do not relocate the seal

5 grams to make balancing easier

K&N intakes are designed to dramatically reduce intake restriction resulting in additional power and torque

Individual Ecotec Valves Universal Exhaust This downpipe also replaces theThese are brand new GM ACDelco LNF valves, sold individually. If you need a complete set of valves, you would have to order quantity 8 each of the intake and exhaust. Exhaust valves: Sodium filled stainless steel Inconel A GREAT upgrade for the LSJ. They work fine in LNF, LSJ, LHU, LDK applications