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LML Duramax S300 Single Turbo Install Kit

-4" Intake
-Dry Air Filter
-Outerwear's Pre-Filter Cover
-Cast T4 Pedestal with Hardware
-Stainless Steel Oil Feed and Drain Lines with Fittings
-3" One Piece Y-Bridge
-3" Hot Side Intercooler Pipe
-3" Cold Side Intercooler Pipe
-3" Down Pipe with High Temp Coating (Mates to exhaust system flange)
-Coolant Bypass Kit for Rear Cover
-Silicone Boots
-T-Bolt Clamps
-V-Band Clamps
-Heat wrap
-Powder Coating
Availability: 40-50 Business Day Lead Time
Shipping: This Product cannot ship to the state of California
Pricing: $2,399.00
5 5 1

Customize Your Item

- Powder Coating -
 * required
- S300 Turbo Charger -
 * required
- Exhaust Housing -
 * required
- Powder Coat Turbo Cover -
 * required
- T4 Turbo Heat Blanket -
 * required
- Already have WCF Y-Bridge Kit -
- Down Pipe Flange Type -
 * required


This kit will allow you to install an S300 based Turbo on your 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.


Shipping Information

  • Item Requires Shipping
  • 60.0 lbs.
  • W24.0000” x H12.0000” x L36.0000”
  • This item ships in its own box.
  • This Product cannot ship to the state of California

Customer Reviews

Comment Total Reviews (1)

WC Fab service and quality is top notch
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 year

Purchased from: Wehrli Custom Fabrication - WCFab

This is the first diesel truck ive goin past just the regular tune and delete and it started with a Exergy cp3 from wcfab then i decided i needed more. They had tons of places that made turbo set ups for the LML that i would stumble across and hear about while reading forums and browsing alone but i knew that it would be extremly difficult to find someone with service wcfab offered and now a couple years into playing with these motors i find the most important part of them all is being able to speak directly with the person who knows there parts and that is the owner and no matter what jason is always quick to respond with a answer and not a guess or a maybe.. he returns his calls and super fast email responses and will go above and beyond to make sure his equipment is working the way it should... for that reason everything on my truck from turbo, pumps, trans and trac bar will have the bad ass wcfab logo with perfect powder coat to cover up the bad ass tig welds!!! Great people with tons of knowledge ... check out there c10 build if you have any thoughts about how serious these guys are!

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