Magnaflow 15398 Turbo Outlet Downpipe

2001-2004 GM 6.6L Duramax LB7
MagnaFlow Exhaust
Mfg. Number:
XDP Part Number:
✔ QuickShips by Next Business Day*
$5 Price Beat Guarantee
The Magnaflow 15398 Turbo Outlet Downpipe for your 01-04 LB7 Duramax is built from 3" mandrel bent stainless steel & features a durable high temp thermal coating. A fiberglass based heat wrap is also used to provide further insulation from the passenger compartment and firewall due to the closer proximity of the larger, higher flowing pipe.

Features & Benefits:
  • 3" Stainless Steel Construction
  • Thermal Coated & Heat Wrapped
  • Increased Performance & Efficiency
  • Improved Throttle Response
  • Reduced EGT's

This product cannot be shipped to and is not legal for use California.

Customer Reviews - Include your order number for a chance to win a $100 GiftCard

Rate This Product:
or Create a Review
(30 Ratings, 1 Review) Average Rating:
Meaner sound
Tricia Pintar (Las Vegas, NV) 7/14/2015 9:55 PM
This job was a pain. The item does not provide additional cooling as far as the customer could tell. The engine throaty sound met with approval. Happy customer, but if your looking to cool the vehicle during towing or normal operations, this isn't it.