Replace the restrictive crushed factory down pipe with this full 3" down pipe. For use with factory turbo or factory style drop in turbo.

Replaces the following GM Part Numbers: 12643610, 12638304, 12643214

Note: 2015.5 and newer LML have a 3 bolt flange exhaust system, this down pipe will only work if you use a 2011-2014 style exhaust system with v-band connection. Or you can use our 3 Bolt Flange Stainless Down pipe PN: WCF100705