MBRP 3" Turbo Down Pipe, 2001-2004 LB7

Part# GMCA425

$254.99 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance.

While the search for more power for your LB7 Duramax powered vehicle usually leads you down the path of exhaust, intake and tuner, one item that is often overlooked is the factory restrictive turbo direct pipe. MBRP has addressed this restrictive component of the factory exhaust with our new turbo direct pipe replacement that mounts between your factory turbo and your exhaust system. Featuring full 16 gauge mandrel bent tubing for maximum flow, and an extremely durable high temperature black powder-coating, this down-pipe will deepen the sound of your V8 diesel engine while lowering EGT's and providing quicker throttle response.


  • Black-Coated Aluminized Steel
  • 3" 16 Gauge Aluminized Tubing
  • ½" Thick Turbo Flange
  • Machined Lower V-Band Flange
  • Increase Exhaust Flow
  • Decrease EGT Temperatures


  • Downpipe Gasket

DmaxStore Note: 

  • May require relocation of transmission dipstick tube


  • 3-Year Warranty covers any defects in workmanship or material. Surface rust, penetrating rust, and discoloration that may develop from heat is not covered by this warranty. Note that climates with high precipitation may accelerate corrosion on aluminized steel.

CARB EO# D-763-2