100% customer guarantee
join our newsletter Thoroughbred Diesel
brands performance accessories stock parts tractor parts
customer guarantee
shop by diesel
shop by
Thoroughbred Apparel
read our low price guarantee
click here for diesel truck gallery
gift cards
diesel resource guide

MBRP Aluminized 4" Exhaust System Off Road

Thoroughbred Diesel is a MBRP Factory Authorized Online Retailer ID#:463340391

Shop with the confidence in knowing that our MBRP products are backed up by the Manufacturer. Fast FREE Shipping on all MBRP Exhaust.

MBRP exhaust system
chevy CHEVY/GMC 2001-2007 Duramax Diesels
Value Without Sacrificing Quality
While seams are main rusting points on some budget systems, MBRP's sealed tubing adds years to service.

Part #S6004AL

Thoroughbred Diesel offers a complete line of MBRP products here.

Aluminized Installer Series, Turbo Back with front pipe and cat-delete pipe.

The Duramax has a refined toughness to it. MBRP Inc. Has left the refined part to General Motors, and added extra toughness. The Duramax makes big power gains with the high flow 4" mandrel bent exhaust system. Each system is a direct bolt on application and is manufactured as a full 4" system. Finish off the system with a 5" diameter mirror polished exhaust tip.(optional) Lower EGT (exhaust gas temperature), improved fuel economy along with more towing power are just some of the added benefits of having this system installer on the Duramax.

For 2001-2007 Chevy & GM Duramax Diesels 2500 & 3500 Series, all cab & bed configurations.
Works on all LB7, LLY, & LBZ Duramax Diesels.

MBRP Part #S6004AL Features:
  • Rich, mellow exhaust note
  • Polished T304 stainless steel tip
  • 4" or 5" single side outlet
  • Can improve fuel economy by 1-2 mpg
  • Boosts horsepower and torque
  • Installs with common hand tools
  • Heavy-duty aluminized steel
  • MBRP 4" kits come with MBRP exhaust tip part #T5051
    free tip
Turbo Back
Turbo Back Kits mount directly to a turbo and provide maximum diameter with reduced band degree angles and mandrel-bent pipe. The objective is to minimize exhaust gas temperatures while optimizing exhaust flow, torque, and horsepower.

Downpipe Back
Ideal for off-road applications, Downpipe Back Kits mount to the stock short downpipe in Duramax-equipped trucks, eliminating the catalytic converter. Their objective is the same as Turbo Back Kits.

Filter Back
The new generation of diesel vehicles has diesel particulate filters and a range of sophisticated emissions-control components. This requires a new approach to gaining power and efficiency without jeopardizing safety or voiding vehicle warranties. MBRP is first with the filter back solution.

sale prices too low to show on MBRP exhaust systems
phone or email sale
enter your email address
  • Enter your email address below and get emailed a coupon code that you can use online at ThoroughbredDiesel.com for instant savings on MBRP exhaust systems
  • Most MBRP exhaust come with a Free exhaust tip
  • Fast Free Shipping on all MBRP exhaust
Enter Your Email Address and Get a Coupon Code in Seconds:
NOTE: This product CAN NOT ship to California due to CARB regulations.
Choose your Chevy/GMC Truck Below Order
Aluminized (Installer Series)

You may also be interested in these other exhaust for your Duramax:
Thoroughbred Diesel logo glowing Thoroughbred Diesel Performance and Repair Shop
4843 Rockwell rd.
Winchester, KY 40391
Call Toll Free: 1-866-737-4966

Copyright© 2003-2014 Thoroughbred Diesel All rights reserved.
Site Map
Thoroughbred Diesel is an Upfront Merchant on TheFind. Click for info.
100% customer guarantee