Replace the restrictive crushed factory down pipe with this full 3" down pipe. High Temp Ceramic Coated for protection. For use with factory turbo or factory style drop in turbo. Down Pipe 3in. for 2004.5-2010 Duramax LLY/LBZ/LMM Features: 3" Down Pipe Heat Wrap &...

LLY / LBZ / LMM Duramax 3" Down pipe for S300 Turbo with HX40 style exhaust outlet flange. T4 Pedestal height must be between 5-6" tall for proper fitment. Lower flange of down pipe mates to exhaust system V-band style flange. Down Pipe 3in....

Replace the restrictive crushed factory down pipe with this full 3" Stainless steel down pipe. For use with factory turbo or factory style drop in turbo. Down Pipe 3in. for 2004.5-2010 Duramax LLY/LBZ/LMM Stainless Features: 3" Stainless Steel Downpipe Heat Wrap and Clamps High...

LLY/LBZ/LMM Duramax 3" Down pipe for S400 turbo with 4.6" Diameter flat exhaust outlet flange (Half marmon). This down pipe mates to the exhaust system v-band flange with OEM clamp for easy install. Must be used with a T4 pedestal between 5.5-6.5" tall. Down...

The WCFab 2001-2016 Duramax Up Pipe Bolt Kit is comprised of 6 specially selected high strength 12 point ARP fasteners and matched washers with a pack of assembly lube and are designed as an upgrade to the OEM fasteners employed on the 2001-2016 and...

Replace the light weight, leak prone Driver side OEM up pipe with this heavy duty 11 gauge 2" Stainless up pipe. HD Stainless Bellow that will not crack and leak like OEM. Increase Turbo spool up and decrease EGT's. Will work with ANY Turbo...

4" Twin Turbo Down Pipe for LB7/LLY/LBZ/LMM Duramax Down Pipe 4in. for LB7/LLY/LBZ/LMM Duramax with Twin / Compound Turbo Features: 4" Twin Turbo Down Pipe for LB7/LLY/LBZ/LMM Duramax For custom built racing applications to fabricate your own twin turbo kit Use in conjunction with...

3" LB7 Turbo Downpipe for use with OEM charger or Stealth series Drop in. High Temp Coated and Heat Wrap included Down Pipe 3in. for 2001-2004 Duramax LB7 Features: 3" Downpipe Heat Wrap High Temp Coating Vehicle Fitments 2001-2004 GMC 6.6L DURAMAX 2001-2004 CHEVROLET...

LB7 Duramax 3" Down pipe for S300 Turbo with HX40 style exhaust outlet flange. Built specifically for use with ProFab 6.5in Fabricated pedestal. Other turbo pedestals may be compatible but have not been verified for fitment. Height must be between 5-6" tall for proper...

Replace the lightweight, leak prone, 1 5/8" OEM up pipes with these heavy duty 11 gauge 2" Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spool-up and decrease EGT's. This kit is for use with...

Replace the lightweight, leak prone, 1 5/8" OEM up pipes with these heavy duty 11 gauge 2" Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spoolup and decrease EGT's. This kit is for use with...

Replace the light weight, leak prone passenger side OEM up pipe with this heavy duty 11 gauge 2" Stainless up pipe. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spoolup and decrease EGT's. This up pipe is built with...

Replace the light weight, leak prone passenger side OEM up pipe with this heavy duty 11 gauge 2" Stainless up pipe. HD Stainless Bellow that will not crack and leak like OEM. Increase Turbo spool up and decrease EGT's. This up pipe is built...

LB7 Duramax 3" Down pipe for S400 turbo with 4.6" Diameter flat exhaust outlet flange (Half marmon). This down pipe mates to the exhaust system v-band flange with OEM clamp for easy install. Must be used with a T4 pedestal between 5.5-6.5" tall. Down...

WCFab 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold allows for a quick and simple down pipe install. No cutting of your exhaust system required! This down pipe connects to the v-band flange...

WCFab 4" Turbo Down Pipe for 2004.5-2007 5.9L Cummins with High Mount style turbo on 2nd Gen style exhaust manifold allows for a quick and simple down pipe install. No cutting of your exhaust system required! This down pipe connects to the v-band flange...

Replace the restrictive crushed factory down pipe on your 2017-2024 L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates with OEM exhaust system front pipe with the 4 bolt style...

The WCFab L5P Up Pipe Bolt Kit is comprised of 12 specially selected high strength ARP fasteners and matched washers with a pack of assembly lube are designed as an upgrade to the smaller and failure prone 8mm OEM fasteners employed on the 2017...

WCFab?s 2017-2024 L5P Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility...

Replace the lightweight, leak prone, 1 5/8" OEM up pipes on your 2017-2024 Duramax with these heavy duty 11 gauge 2" Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spool-up and decrease EGT's. This kit...