Wehrli Custom Fabrication - WCFab - Single Turbo Kits

This kit will allow you to install an S300SXE based Turbo on your 2013-2018 6.7 Cummins with a 2nd Gen Style Exhaust Manifold (Sold Separate). Kit includes all components needed to install the turbo. We mount the manifold pointing up which allows for a quick and simple down pipe install- no cutting of your exhaust system required! Our down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did. NO Bending of AC lines is required. OEM Coolant tank can be used, we do offer a fabricated aluminum tank as an option in the kit. Designed to be used with 2nd Gen Style ATS 3 piece or Steed Speed exhaust Manifold. If you are not purchasing the turbo and manifold from us you must specify the brand of turbo and manifold you are using, some brands may require that you send the parts in to us for the kit to be built.

**Hot side Intercooler pipe uses a v-band connection at turbo. The kit INCLUDES welding of V-band flange to the SXE turbo cover. If you are not purchasing turbo from us, it WILL need to be sent in to have flange welded onto the outlet.

**Our down pipe is HX40 style flange connection at the turbo exhaust housing as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange!

Check out our Product Video in the "Video" Tab!

This kit will allow you to install an S400 based Turbo on your 2013-2018 6.7 Cummins with a 2nd Gen Style Exhaust Manifold (Sold Separate). Kit includes all components needed to install the turbo. We mount the manifold pointing up which allows for a quick and simple down pipe install- no cutting of your exhaust system required! Our down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did. NO Bending of AC lines is required with this kit! Stainless steel oil feed (#6) and oil drain (#10) lines. OEM Coolant tank may be used, and we also offer a custom fabricated aluminum tank as an option separately.

**Designed to be used with 2nd Gen Style ATS 3 piece or Steed Speed exhaust Manifold. If you are not purchasing the turbo and manifold from us you must specify the brand of turbo and manifold you are using, some brands may require that you send the parts in to us for the kit to be built.

**Our down pipe is designed for standard S400 T4 4.6" Diameter flange connection as this style offers the best seal, alignment, and easiest install.

**KIT IS NOT COMPATIBLE WITH RACE COVER STYLE TURBOS!

Check out our Product Video in the "Video" Tab!

NOTE: This kit is a standard item included in all WCFab LML Y-bridge Kits, Bundle Kits, Single, and Twin Turbo Kits.

 

2011-2016 LML Duramax Coolant Bypass Kit. Preformed rubber hose routes coolant from thermostat housing to firewall/heater core connection with pre-installed GM quick connect fitting. Billet aluminum anodized plug installs into rear engine cover coolant port, allowing removal of the OEM coolant hard pipe

 

NOTE: This kit is a standard item included in all WCFab LML Y-bridge Kits, Bundle Kits, Single, and Twin Turbo Kits.

This kit will allow you to install an S300 based Turbo on your 2011-2016 LML Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Our down pipe is HX40 style flange connection at the turbo as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange! Note picture above for HX40 flange vs full marmon standard style.

***NOTE: Down pipe comes standard with V-band style connection on bottom to connect with exhaust system. If you want 3 bolt flange style connection it is an additional $75.00.

Complete Drop in Turbo kit, INCLUDES YOUR CHOICE OF 3 CUSTOM S300 SXE TURBOCHARGER AND EXHAUST HOUSING OPTIONS.

Which Turbo Size Option is best for you?

The S364.5 SXE is a great choice for trucks looking to replace a failed OEM turbo, or applications with stock injectors and no plans for upgrading them. This Charger spools quickly, similar to OEM VGT characteristics. With proper tuning this turbo will produce a clean, crisp, responsive 600-625HP to the wheels. It can be pushed farther but it is not recommended as you will experience extreme drive pressures.

Want more? Plan on installing larger injectors? The S369 SXE option is your ticket. This turbo is a perfect match with Exergy 60% over modified injectors. At about the same point that the turbo reaches its potential the truck will also reach the limits of the OEM HP4 Pump and OEM Lift pump; Its a good combination for a clean 700-725HP at the wheels. It can be pushed farther (we've made as much as 800hp to the wheels with this charger) but you will start to creep up on higher drive pressures and heat and you will also need upgraded high pressure pump and lift pump to achieve it without the rail pressure dropping considerably.

Little more yet? The S372 SXE is the largest offering in the S300 frame. It out performs the S369 in peak horsepower potential, but since it uses the same turbine wheel as the S369 it will start to creep into the excessive drive pressure and heat ranges if pushed to its maximum potential. This turbo is best used in conjunction with our CP3 Conversion kit and Custom FASS Lift pump combination and will break the 800HP mark at the wheels. If you do not have any intentions in purchasing those two kits (the CP3 Conversion or Lift Pump Upgrade, then the S369 is the better choice for you.

NOTE: CUSTOM TUNING IS REQUIRED. This is a Racing Product meant for Competition and Racing only. 

This complete kit allows for installation of a Borg Warner S400 frame turbocharger in place of the factory VGT on the very capable 2017-2019 L5P Duramax engine platform. Replaces all of the OEM plumbing and y-bridge with a combination of high flow 3" and 3.5” diameter piping and Y-bridge. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to bolt directly to your exhaust system which simplifies installation and prevents the need for cutting or additional modification. If you are not purchasing a turbocharger from WCFab you must specify the brand and type of charger you are using. Some turbos may be required to be shipped to us for mock-up to build the kit. 

Proven capable of supporting over 1,000 WHP on our shop truck with appropriate supporting modifications. 

 
NOTE: CUSTOM TUNING IS REQUIRED. This is a Racing Product designed for Competition Use only. 

***Built transmission, injectors, stroker CP3 conversion and lift pump recommended for optimum performance***

This kit will allow you to install an S300 based Turbo on your 2007.5-2010 LMM Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Our down pipe is HX40 style flange connection at the turbo as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange! Note picture above for HX40 flange vs full marmon standard style.

This kit will allow you to install an S300 based Turbo on your 2006-2007 LBZ Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Our down pipe is HX40 style flange connection at the turbo as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange! Note picture above for HX40 flange vs full marmon standard style.

This kit will allow you to install an S300 based Turbo on your 2004.5-2005 LLY Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Our down pipe is HX40 style flange connection at the turbo as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange! Note picture above for HX40 flange vs full marmon standard style.

This kit will allow you to install an S300 based Turbo on your 2001-2004 LB7 Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Our down pipe is HX40 style flange connection at the turbo as this style offers the best seal, alignment, and easiest install. If you are not purchasing the turbo from us you will need to make sure your exhaust housing is machined to HX40 style outlet flange! Note picture above for HX40 flange vs full marmon standard style.

This kit will allow you to install an S400 based Turbo on your 2011-2016 LML Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

***NOTE: Down pipe is designed for Half Marmon style S400 exhaust outlet; 4.6" Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.

***NOTE: Down pipe comes standard with V-band style connection on bottom to connect with exhaust system. If you want 3 bolt flange style connection it is an additional $75.00.

This kit will allow you to install an S400 based Turbo on your 20075.-2010 LMM Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

NOTE: Turbo Down pipe is designed for Half Marmon style S400 exhaust outlet; which measures 4.6" Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.

NOTE: Race cover style or SXE turbo chargers will require the use of a forward facing VAN style thermostat housing and hose, sold separate.

This kit will allow you to install an S400 based Turbo on your 2006-2007 LBZ Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

NOTE: Turbo Down pipe is designed for Half Marmon style S400 exhaust outlet; which measures 4.6" Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.

NOTE: Race cover style or SXE turbo chargers will require the use of a forward facing VAN style thermostat housing and hose, sold separate.

This kit will allow you to install an S400 based Turbo on your 2004.5-2005 LLY Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

NOTE: Turbo Down pipe is designed for Half Marmon style S400 exhaust outlet; which measures 4.6" Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.

NOTE: Race cover style or SXE turbo chargers will require the use of a forward facing VAN style thermostat housing and hose, sold separate.

This kit will allow you to install an S400 based Turbo on your 2001-2004 LB7 Duramax. Replacing all of the OEM plumbing and y-bridge with high flow 3" diameter piping. Oil Lines are high quality stainless steel braided Parker Lines with the oil feed line routing from the main oil galley on the side of the engine block. We designed our down pipe to connect with your exhaust system V-Band and clamp which simplifies installation and does not require you to cut your exhaust system.
If you are not purchasing the turbo from us you must specify the brand of turbo you are using, some Turbo's you may be required to ship to use for mock up to build the kit.
Includes Driver Side Transmission Dipstick Tube which makes installation of the down pipe easier.

NOTE: Turbo Down pipe is designed for Half Marmon style S400 exhaust outlet; which measures 4.6" Diameter flat flange. NOT compatible with HX40 style exhaust outlet flanges.

NOTE: Race cover style or SXE turbo chargers will require the use of a forward facing VAN style thermostat housing and hose, sold separate.

This kit will allow you to install an S400 based Turbo on your 2004.5-2007 5.9 Cummins with a 2nd Gen Style Exhaust Manifold (Sold Separately).

Kit includes all components needed to install the turbo. We mount the manifold pointing up which allows for a quick and simple down pipe install- no cutting of your exhaust system required! Our down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did.

**Designed to be used with 2nd Gen Style ATS 3 piece or Steed Speed exhaust Manifold. If you are not purchasing the turbo and manifold from us you must specify the brand of turbo and manifold you are using, some brands may require that you send the parts in to us for the kit to be built.

**Our down pipe is designed for standard S400 T4 4.6" Diameter flange connection as this style offers the best seal, alignment, and easiest install.

**KIT IS NOT COMPATIBLE WITH RACE COVER STYLE TURBOS!

***Also compatible with 2003-2004 model year trucks which have updated their down pipe / front pipe to the 2004.5-2011 style part***

This kit will allow you to install an S400 based Turbo on your 2007.5-2009 6.7 Cummins with a 2nd Gen Style Exhaust Manifold (Sold Separate). Kit includes all components needed to install the turbo. We mount the manifold pointing up which allows for a quick and simple down pipe install- no cutting of your exhaust system required! Our down pipe connects to the v-band flange on the exhaust pipe just as your factory turbo/cast elbow did.

**Designed to be used with 2nd Gen Style ATS 3 piece or Steed Speed exhaust Manifold. If you are not purchasing the turbo and manifold from us you must specify the brand of turbo and manifold you are using, some brands may require that you send the parts in to us for the kit to be built.

**Our down pipe is designed for standard S400 T4 4.6" Diameter flange connection as this style offers the best seal, alignment, and easiest install.

**KIT IS NOT COMPATIBLE WITH RACE COVER STYLE TURBOS!

***This kit must be used in conjunction with Wagler street cast intake and twisted pedestal.
***Custom High Pressure lines are necessary for proper fitment with the street cast intake on all model years.
***2001-2010 Model years require the use of a van style thermostat housing and upper radiator hose for clearance to the street cast intake.
***LLY must use aftermarket transmission line kit.

This kit will allow you to install an S400 based Turbo on your Duramax using a Wagler Competition Street Cast intake Manifold and Twisted Pedestal (Sold Separate)