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2011-16 Duramax 6.6L LML
Exhaust Components
Down-pipes
MBRP 3" Turbo Down Pipe, Chevy/GMC 6.6L Duramax 2011 - 2015

MBRP 3" Turbo Down Pipe, Chevy/GMC 6.6L Duramax 2011 - 2015

MBRP Exhaust:

GM8427

UPC:

882963117625

$254.99

INSTALL INSTRUCTIONS

MBRP GM8427 Instructions

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

Greater Heat Retention
20% Greater Flow Over Stock
Richer Diesel Sound
Will not Affect Emissions (DPF system or the Urea injection system)
Gains of +21 HP and +24 lb/ft Torque
Will not work with a 3 bolt flange style connection
Not to be sold in California

MBRP Warranty and Terms

Installer Series: Three (3) Years warranty on Aluminized Steel
XP Series: Lifetime warranty on 409 Stainless Steel
PLM Series: Limited One (1) Year warranty
Pro Series: Lifetime warranty on 304 Stainless Steel
Black Series: One (1) Year warranty on the coating and a three (3) Years Warranty on the exhaust components
Performance Series: Two (2) Years warranty on Aluminized Steel

Powersports

Sports Series: 1 Year Warranty
Performance Series: 1 Year Warranty
Trail Series: 2 Year Warranty
Race Series: 2 Year Warranty

Warranty Information:

The MBRP Inc. warranty applies only to defects in material & workmanship of MBRP Inc. products to the original purchaser on record, providing that installation was completed on the original vehicle for which it was designed and tested for. MBRP Inc. will not warranty the cost of removal or re-installation of this product nor does the warranty apply if the product has been damaged by accident, abuse, misuse or misapplication. The sole obligation of MBRP Inc. will be to repair or replace at its discretion.