Login
My Account
My Cart
The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
Enter your truck info so we can recommend the right products for you.
Can't find it? Call us at 859-737-4966 for free advice.
Menu
Air Filters
Air Intakes
Clutches
Cooling System
Drive Line
Electronics
Engine
Engine Parts
Exhaust
Exhaust Brakes
Fabrication Components
Fluids
Fuel Systems
Fuel Tanks
Gauges
Injection Pumps
Injectors & Related Items
Intake Manifolds
Intercoolers
Lift Pumps
Programmers
Silicone Hoses
Suspension
Tools
Transmissions
Turbochargers
Water Meth Inj Kits
Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.
Brakes
ECM
Electrical Components
Engine Components
Exterior Replacement Parts
Filters
Fuel Pumps
Gaskets & Seals
Interior Replacement Parts
Oil Pumps
Starters & Alternators
Thoroughbred Diesel offers OEM and diesel stock parts for your diesel pickup truck. At Thoroughbred Diesel, you can buy stock diesel replacement parts such as injectors, fuel pumps, ball joints, track bars, turbos, and more for your diesel truck.
Injection Pump
Injector
Turbo Charger
Batteries
Bed Covers
Bumpers
Fender Flares
Floor Mats and Liners
Grilles
Horns
Lighting
Mud Flaps
Nerf Bars
Running Boards
Seats & Covers
Shift Knobs
Spare Tire Carriers
Storage
Tailgate Nets
Tool Box
Truck Steps
Ventvisors
Wheels
Winches
Make heads turn with custom truck accessories from Thoroughbred Diesel.
Ball Mounts
Gooseneck & Fifth Wheel
Hitch Balls
Hitch Pins & Hitch Locks
Hitch Steps
Hitches
Loading Ramps
Shackles & Tow Hooks
Tow Brakes
Tow Mirrors
Towing Accessories
Weight Distributing Hitchs
Banners
Decals
Hats
Hoodies
License Plates
Shirts
Tank Tops
Show your support with a Thoroughbred Diesel t-shirt, sweatshirt, or sticker decal.
Thoroughbred Sku #: WCF100570
Product Name: WC Fab Twin Turbo Kit S400/Stock, for 2001-2004 Duramax LB7 Manufacturer: WC Fab Thoroughbred Diesel Part #: WCF100570 Fitment Notes: 2001-2004 GM Duramax LB7
Compound Turbo Kits (also known as Twin Turbo Kits) for the 2001-2004 LB7 Duramax have become one of the most popular upgrades for daily drivers and towing rigs. Compounding over your factory turbo charger has been proven to provide cooler EGT's and increased power across the rpm range, all while allowing the use and function of the factory turbine brake feature. They are a great all around setup for towing, the weekend warrior, and truck pulling competition, or racing. With proper tuning (Required) and additional supporting modifications the Compound Turbo Kit can provide up to 650 HP and 1300 LBS of torque. One of the nicest features of compounding over your factory turbocharger is that the truck will not have any additional turbo lag or loss of spool up, which is common with a larger single turbo upgrade. The truck will have instant response and boost just as it does with only the factory turbo, but more efficient across a wider range, with cooler EGT?s! Every WCFab Turbo kit is hand build in house by our experienced fabricators and welders. Every component is built and test fit on our jigs to ensure proper fitment. All tubing is TIG welded and the mating flanges are CNC machined with O-ring seals where necessary for a boost-leak free setup. We stand behind our fabricated components and workmanship for the life that you own the product. The Compound Turbo Kit comes with all the necessary components to install, with several upgrades and turbo options available. Powder coating is included in the price. Certain upgrades are necessary for optimum performance and drivability. (I.E- Tuning and FASS Lift Pump)
Note:
WC Fab Twin Turbo Kit S400/Stock Features: