01-04 Duramax 5" Downpipe back exhaust no muffler - Aluminized T-shirts If you want white LED

If you want white LED reverse light bulbs

resulting in enhanced engine performance

This kit includes both the hot and cold side intercooler pipes and outflows your factory components by up to 32%

GDP TCM tuning for 2011-2016  LML Duramax

01-04 Duramax 5" Downpipe back exhaust no muffler - Aluminized T-shirts If you want white LEDHighlights 5" Downpipe Back System No Muffler Aluminized Steel Single Side Exit Built from heavy duty aluminized steel our Performance Series exhaust systems offer a value price without compromising on the quality built into every component. While the seams are a major point of rust through with some budget systems our fully sealed tubing adds years to your system. Constructed to the same specifications as our top of the line Pro Series we back this