Walker® 39378 Exhaust System Kit

Product Description

Walker® 39378 Exhaust System Kit

Ultra Flo Exhaust System Kit

Dynomax Ultra Flo 39378 Exhaust System Kit for Chevrolet Silverado 2500 HD

Give your Chevrolet Silverado/GMC Sierra 2500’s exhaust system an upgrade with a DynoMax® Ultra Flo® welded 4-in. single cat-back exhaust system. Features a DynoMax Ultra Flo welded muffler that features Continuous Roving Fiberglass (CRF) to absorb unwanted interior resonance while maintaining a deep performance tone.

COMPATIBILITY -- Designed for 2001-2007 Chevrolet Silverado 2500 and GMC Sierra 2500; 153-in. wheelbase; see product information for compatibility and engine specs

COMPLETE SOLUTION -- Includes DynoMax Ultra Flo welded muffler, pipes, tip and clamps

EASY TO INSTALL -- Direct-fit bolt-on pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn’t require specialized fabrication and/or welding

IMPROVED FLOW CAPACITY -- 4-in. Stainless-steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power

SUPERIOR PERFORMANCE -- Straight-through design ensures unrestricted exhaust flow and reduces back pressure; dyno proven to flow up to 2,200 SCFM

PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance while maintaining a deep performance tone

ENGINEERED TO LAST -- Muffler features stainless-steel construction with a micro-finish for lifelong protection and 100% welded design for maximum durability

NOTES -- 5-in. Outlet double wall, buffed and polished stainless-steel slant cut tip; 4-in. straight cut tail pipe

BUY WITH CONFIDENCE -- Comes with DynoMax’s limited lifetime warranty and exclusive 90-Day Performance & Sound Guarantee™

PRODUCT ATTRIBUTE & INFO

Vehicle fitment summary

2007 Chevrolet Silverado 2500 HD Classic (Liter: 8.1, 6.0 & Engine(cc): 5967 & Engine(ci): 496, 364 & Cylinder: 8 & Block: V & Bore(in): 4.25, 4.00 & Bore(mm): 108.0, 101.6 & Stroke(in): 4.37, 3.62 & Stroke(mm): 111.0, 92.0 & Wheel Base: 153.0); 2001-2006 Chevrolet Silverado 2500 HD (Liter: 8.1, 6.0 & Engine(cc): 5967 & Engine(ci): 496, 364 & Cylinder: 8 & Block: V & Bore(in): 4.25, 4.00 & Bore(mm): 108.0, 101.6 & Stroke(in): 4.37, 3.62 & Stroke(mm): 111.0, 92.0 & Wheel Base: 153.0); 2007 GMC Sierra 2500 HD Classic (Liter: 8.1, 6.0 & Engine(cc): 5967 & Engine(ci): 496, 364 & Cylinder: 8 & Block: V & Bore(in): 4.25, 4.00 & Bore(mm): 108.0, 101.6 & Stroke(in): 4.37, 3.62 & Stroke(mm): 111.0, 92.0 & Wheel Base: 153.0); 2001-2006 GMC Sierra 2500 HD (Liter: 8.1, 6.0 & Engine(cc): 5967 & Engine(ci): 496, 364 & Cylinder: 8 & Block: V & Bore(in): 4.25, 4.00 & Bore(mm): 108.0, 101.6 & Stroke(in): 4.37, 3.62 & Stroke(mm): 111.0, 92.0 & Wheel Base: 153.0)