Valvetronic Designs 4" Single Inlet/Outlet Valved Muffler Kit - Universal lml duramax 2011-'16 set We created a brand new

We created a brand new design for the charge pipes that inspire more confidence in handling the boost pressure

2002-2003 Pontiac Grand Am GT

Made with 6061 aluminum

Waterproof Rating: IP69K (Waterproof & Pressure Washable)

Valvetronic Designs 4" Single Inlet/Outlet Valved Muffler Kit - Universal lml duramax 2011-'16 set We created a brand newThe Valvetronic Designs UVM. 101MM. X1 Universal Muffler Kit gives you two exhaust notes in one system. A single 101MM 4" inlet and outlet valved muffler opens and closes on command, so the car stays civil on the street and turns loud and aggressive at the press of a button on the included key fob remote. The muffler body is constructed from T304 stainless steel with precision TIG welds for high strength and ultimate longevity. A vacuum control box