ZZP 2.5 inch Stainless Ion Redline-LSJ Catback Exhaust Downpipe Exit Flange:Stock/2.5 Inch Upper intake gasket (L36/22 only)

Upper intake gasket (L36/22 only)

Modern lean-burning

on position for 15 minutes

Pontiac 1980-2009

438" int lift

ZZP 2.5 inch Stainless Ion Redline-LSJ Catback Exhaust Downpipe Exit Flange:Stock/2.5 Inch Upper intake gasket (L36/22 only)Stainless steel Mandrel bent Optional ZZP resonator ZZP chambered muffler 1 2" Hangers in all OEM locations Includes all required clamps and gasket During the testing phase we setup an RTA to measure db levels at various frequencies and rpm ranges. Time consuming to say the least but in the end we came up with a solution which we now manufacture in stainless steel. This is an aftermarket catback so it will be louder than stock. Also it will be even