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MBRP 50-State 3" Turbo Down Pipe for 2001-2004 Chevy GMC 6.6L Duramax GMCA425

Part# GMCA425 l UPC# 882963122698
$240.87 Now $194.99
Qualifies for FREE SHIPPING - Ships Out by Next Business Day


Product Description

The turbo down pipe is an often overlooked stock component that can really restrict exhaust flow. When you’re looking to upgrade your exhaust system, and even if you’ve already installed a down pipe-back performance exhaust, consider upgrading your down pipe for better diesel performance. This Duramax MBRP Turbo Down Pipe is built from 16 gauge tubing and has an extremely durable high temperature black ceramic coating. This down pipe is also 50 state legal.

Key Features

  • Increased performance by removing constrictions
  • Improved Airflow through Mandrel-bent tubing
  • Allows for faster turbo spool up
  • Improved throttle response
  • Installs using factory mounting locations
  • 50-State Legal, California CARB EO # D-763-1
  • Backed by a 3-year warranty

If you’ve purchased or are purchasing a Downpipe-Back MBRP exhaust for your LLY, LBZ, or LMM Duramax, adding this performance downpipe will give you a true “turbo-back” system and all the performance that comes with it. Upgrading to this 3" downpipe will give you increased horsepower and torque with reduced Exhaust Gas Temperatures.

Click here for California Proposition 65 Notice

This product can expose you to chemicals which are known to the State of California to cause cancer. For more information go to