MBRP Turbo Outlet 3" Performance Duramax LB7 Down Pipe

Sale Price:
You Save:
2001-2004 GM 6.6L Duramax LB7
MBRP Performance Exhaust
Mfg. Number:
XDP Part Number:
✔ QuickShips by Next Business Day*
$5 Price Beat Guarantee
Duramax LB7 owners now have the ability of connecting the turbo and aftermarket down-pipe back exhaust system by removing the restrictive stock pipe. The MBRP down pipe provides a smoother flow from the turbo resulting in lower EGT’s and Increased Performance. The down pipe is a relatively easy install due to the precision bends that you’ve come to expect from MBRP.


  • 3" 16 Gauge Aluminized Tubing
  • 1/2" Thick Turbo Flange
  • Satin Black Ceramic Coating
  • High-Heat Thermal Wrap
  • Machined lower V band flange



  • Smoother Flow from Turbo
  • Reduced EGT’s
  • Increased Performance
  • Throatier Sound
  • Faster Turbo Spool-up

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

(53 Ratings, 6 Reviews) Average Rating:
dont buy if you have CA lb7
Kris (CA. ) 4/5/2014 2:21 PM
I have a California 2004 lb7 and i bought this hoping the install would be fairly easy. Turns out this piece is not meant for CA trucks with exhaust recirculation so i had to modify the downpipe by cutting and sanding until it cleared the recirculation pipe. then, one hole refused to line up so i had to make the hole bigger with a die grinder.
01 gmc lb7
Thomas Boley (Deerfield, WI) 2/24/2013 3:37 PM
This product is great turbo used to start spooling around 1900 now it's about 1250. Egt's dropped tremendously and the turbo is much more pronounced. Excellent product everyone who has a duramax should have one.
well worth the money
matt g (lock haven, pa) 5/4/2012 8:45 PM
egts drop fast, turbo spools faster, quicker acceleration(seat of the pants), little rough on install, found if you remove bracket on back of pass. head pipe drops right in.
01 lb7 longbed 4x4
colton (tx) 3/4/2012 4:25 PM
man did product is alwsome!!!!!!!!! with this down pipe and all the performace parts i put on my truck,volant intake,mbrp turbo down pipe, mbrp exaust, banks power wastegate,duramaxmileage tunner i went from 17mpgs stock to 22 mpgs if drive fast but if i drive sensabile i get amazing 23mpngs but now i need to get iardog 165 pgh fuelsystem for more power fuel economy.
duramax lb7
cw (damon,tx) 11/11/2011 5:08 PM
this is the best thing to put on to increase mpg by 1-2 mpg better acceration with a great sound makes my 01 sound tough and faster turbo spool up the the restricted stock flat piece a junk . this 3 inch turbo decrease egts quickly thanks xdp.