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Downpipe & System Components

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BD-Power 1045240 S400 Full Marmon Downpipe Kit 24503 13.00 BD-Power 1045240 S400 Full Marmon Downpipe Kit
$ 175
The BD-Power 1045240 S400 Full Marmon Downpipe Kit for your 2003-2009 Dodge 5.9L and 6.7L Cummins is built from 4" mandrel-bent aluminized steel. Downpipe includes clamp for turbocharger and lap-seal band clamp to connect to 4" exhaust system. Features: Fits Full Marmon Flange For S400 Turbochargers Aluminized Steel Construction
Fleece FPE-CUMMINS-S400-DP-03 S400 Outlet Downpipe 20648 15.00 Fleece FPE-CUMMINS-S400-DP-03 S400 Outlet Downpipe
$ 299
The Fleece FPE-CUMMINS-S400-DP-03 S400 Outlet Downpipe is engineered for 2003-2018 Dodge 5.9L/6.7L Cummins trucks running a 2nd gen manifold and an S400 style turbo with a flat "V" flange. This downpipe features 304 stainless steel construction for longevity and includes a 4” band clamp for installation.Features:304 Stainless-SteelFull Marmon "V" Flange4” Pre-Formed Band Clamp
Industrial Injection HX40 Downpipe HX40DP3 9589 15.00 Industrial Injection HX40 Downpipe HX40DP3
$ 190
HX40 3rd Gen Down Pipe This downpipe will fit any of our Phatshaft turbos for the 2003-2004 Dodge Cummins 5.9L. Includes exhaust clamp.
Magnaflow 15394 4" Turbo Downpipe 14184 11.00 Magnaflow 15394 4" Turbo Downpipe
$ 151.07
Upgrade the exhaust system in your 2003-2004 Dodge 5.9L Cummins with the Magnaflow 15394 4" Turbo Downpipe. Built from 100% stainless steel for maximum durability, this downpipe is mandrel-bent to ensure maximum flow, and performance. Ideal for use in custom exhaust applications or repairing aftermarket exhaust systems. Hardware, hangers and other accessories not included. Features:4" Downpipe Smooth Mandrel-Bends Stainless Steel Construction
Magnaflow 15395 4" Tail Pipe 14190 18.00 Magnaflow 15395 4" Tail Pipe
$ 129.25
Upgrade the exhaust system in your 2003-2004 Dodge 5.9L Cummins with the Magnaflow 15395 4" Tail Pipe. Built from 100% stainless steel for maximum durability, this tail pipe is mandrel-bent to ensure maximum flow, and performance. Ideal for use in custom exhaust applications or repairing aftermarket exhaust systems. Hardware, hangers and other accessories not included. Features:4" Tail PipeSmooth Mandrel-Bends Stainless Steel Construction
MBRP 4" Aluminized Downpipe DAL405 5958 15.00 MBRP 4" Aluminized Downpipe DAL405
$ 124.99
XDP is a MBRP Factory Authorized Online Retailer ID# 600207727. We would like you to shop with confidence knowing your purchase is covered by the manufactures warranty. Get even more exhaust flow with this MBRP Down Pipe MBRP down pipes are jig manufactured to ensure total accuracy. Smooth mandrel bends will give you the best flowing down pipes in the industry. Gain extra power and enjoy the EGT reduction as well. Constructed from heavy duty aluminized steel you can count on this pipe lasting for years to come. Fabrication may be required to complete exhaust system. Features: 4" Aluminized Steel Construction Increase Power and Efficiency Lower Exhaust Gas Temperatures Mandrel Bent and Jig Manufactured 3 Year Warranty
MBRP 4" T409 Stainless Steel Downpipe DS9405 5960 41.00 MBRP 4" T409 Stainless Steel Downpipe DS9405
$ 134.99
XDP is a MBRP Factory Authorized Online Retailer ID# 600207727. We would like you to shop with confidence knowing your purchase is covered by the manufactures warranty. Get even more exhaust flow with this MBRP Down Pipe MBRP down pipes are jig manufactured to ensure total accuracy. Smooth mandrel bends will give you the best flowing down pipes in the industry. Gain extra power and enjoy the EGT reduction as well. Constructed from heavy duty T409 stainless steel you can count on this pipe lasting for years to come. Fabrication may be required to complete exhaust system. Features: 4" T409 Stainless Steel Construction Increase Power and Efficiency Lower Exhaust Gas Temperatures Mandrel Bent and Jig Manufactured Lifetime Warranty
XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.