2017-2023 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 2017-2023 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. The 2020+ L5P OEM Turbos do have a different Intake air temperature sensor than 2017-2019. This S300 comes threaded for the 17-19 IAT sensor. If you have a 2020-2023 L5P, there is a threaded port on the compressor cover you will have to block off. We're working on providing a bolt and washer for this port. You will also have to re-pin the VGT dummy plug for the 2020+ L5P.
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:
Genuine Borg Warner S369 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
Optional and Suggested items:
T4 WCFAB Heat Blanket (highly suggested and is asked in the drop down questions) View here
2017-2019 Stage 1 Intercooler pipe set View here
2017-2019 4" Intake kit View here
2020-2023 Stage 1 Intercooler pipe set View here
2020-2023 4" Intake kit View here
ARP Up-pipe bolts View here
PPE Up-pipe gaskets View here
If you want to plug the port on the intake horn, we sell an optional plug View here
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. I have a 2024/2025/2026 Durmax L5P, does this kit work?
A. We have a kit specifc for those. 2024-2026 L5P S300 Kit
L5P S300
Duramax L5P S300 Turbo Kit
L5P Fixed Vane Turbo
S300 Kit L5P
L5P S369 Turbo
S300 Turbo for L5P Duramax