2024-2026 L5P DURAMAX S300 TURBO KIT - Drop in Turbo! - GM 2500/3500HD
LEAD TIMES AS THESE KITS ARE BUILT TO ORDER - Raw typically carries 15 business days (Monday to Friday) to get built, packaged and shipped. ***There are no cancellations. Once an order is submitted, your kit immediately gets started on.*** We used to offer powder coated options for the compressor cover but since it became a bottleneck in the production, we no longer offer that. The compressor cover will be raw (4th picture for example). The powder coating can be done on your end if you choose to do that.
You are looking at a John C Garage exclusive drop in S300 kit for the 2024-2026 L5P Duramax! The only size we have available at this time is the S369. This S300 turbo kit is designed to drop in place of your factory L5P turbo with no real modifications needed with the exception of converting back to a 2017-2023 Pedestal which is included in the kit! You will also have to re-pin the VGT dummy plug, but we are working on a solution for the 2020+ trucks as this plug were originally intended for the 17-19 L5P's.
The 69mm is ideal for stock injectors or even upgraded fuel system! It is capable of power in the 750-800hp range with supporting mods.
Specifications for the turbo:
- S300SX-E with 73mm Turbine Modified by WCFAB for L5P Duramax
- 360 degree thrust bearing
- Forged milled (FMW) compressor wheel
- Modified Compressor Cover inlet to Accept the L5P Intake Horn (Included in the kit) and outlet for L5P Driver (Hot) Side Intercooler Pipe Connection.
Included in the full kit that we are offering for the 2024-2026:
Genuine S369 Borg Warner turbo
.88 AR Borg Warner S300 exhaust housing machined for HX40 outlet
Full 3.5" down pipe specific to the S300 turbo with HX40 connection
HX40 Vband exhaust clamp
Heat wrap roll for down pipe and x2 worm gear hose clamps needed for installation
Full oil feed and drain line kit
High Flow Intake Horn with Open Flange specific to the S300 Turbo. The one pictured with the kit is an older style. View the last picture for the updated version shipping with these kits now.
T4 pedestal adapter kit with hardware that bolts to your factory pedestal
L5P VGT Dummy Plug (Plug and play for 17-19) Needs to be repinned for 2020+
Factory Coolant block off plate
OEM GM 2017-2019 Pedestal
WCFAB ARP Up-pipe bolt kit
PPE Up-pipe gasket kit
Optional and Suggested items:
T4 WCFAB Heat Blanket (highly suggested and is asked in the drop down questions) View here
2020-2025 Stage 1 Intercooler pipe set View here
2020-2025 4" Intake kit View here
If you want to plug the port on the intake horn, we sell an optional plug View here
Don't see the color you want? Let us know and we will add it for you!
Commonly asked questions:
Q. Will I need a tune revision to run this turbo?
A. Yes, you absolutely will since this is a fixed geometry turbo.
Q. How long does it take to ship my S300 kit once I place the order?
A. It can take anywhere from 15-25 business days to ship which is calculated only using Monday-Friday. We have no control over these lead times so please be sure this fits your timeframe ahead of time.
Q. I already have a 3.5" down pipe and intake horn for my factory turbo, can I reuse those?
A. No you cannot. The intake horn and 3.5" down pipe in this kit are specific to the S300 turbo! The flanges are different from the factory VGT turbo and this S300 so that is why we sell this as a full package.
Q. What separates the 2024-2026 kit from the 2017-2023 kit we offer?
A. Take a look at the second photo. This shows exactly what's included to make this kit work on the 2024-2026 L5P. You will receive a brand new GM 17-23 pedestal, ARP up-pipe bolts, and PPE up-pipe gaskets which is needed since GM changed the pedestal on the 2024-Current L5P.
L5P S300
Duramax L5P S300 Turbo Kit
L5P Fixed Vane Turbo
S300 Kit L5P
L5P S369 Turbo
S300 Turbo for L5P Duramax