Unleash extreme performance from your 2017–2023 L5P Duramax with our complete Compound Turbo Kit, engineered for serious power, fast spool-up, and long-term reliability. This system pairs your factory-style high-pressure turbo with a massive S400 atmosphere charger, delivering instant low-end torque and relentless top-end horsepower.
Perfect for high-horsepower street trucks, towing applications, or competition builds, this kit provides a seamless balance between drivability and performance. Every component is precision-built, TIG-welded, and pressure-tested to ensure durability under extreme boost conditions while maintaining a clean, factory-like installation.
Turbo Options:
Choose your preferred S400 atmosphere turbo to match your power goals
S476: Fast spool-up with strong midrange power
S480: Ideal balance of drivability and peak performance
S485: Maximum airflow and top-end power for competition-level builds
Kit Features:
Direct-fit design for 2017–2023 GM L5P Duramax engines
Utilizes the factory-style turbo as the high-pressure unit
Includes S400 frame atmosphere turbo
Custom stainless up-pipes, hot pipe, cold pipe, and intercooler piping
Precision v-band connections for a clean, leak-free fit
Heavy-duty turbo pedestal and mounting brackets
Custom oil feed/return and coolant lines for OEM-style installation
All gaskets, clamps, boots, and hardware included
Designed to support 1,000+ HP with proper fueling and tuning
Performance Benefits:
Instant throttle response with massive top-end airflow
Lower EGTs and improved turbo efficiency
Excellent towing and street performance
Proven reliability under heavy load and high boost
Recommended Upgrades:
For optimal results, we recommend pairing this kit with
Custom calibration Required (sold elsewhere)
Upgraded fuel system (CP3 conversion, lift pump, and injectors)
Performance-built transmission or tuning
Note
Each kit is built to order and includes your choice of S400 atmosphere turbo (S476, S480, or S485). Optional powdercoat finishes are available for piping and turbo components for a fully customized look.
$6050
Shipping:
Return Policy: All core, general and warranty returns must be approved prior to the shipment of the returning product. Please provide your order #. This will help us to process your return quickly.
You will receive ALL return instructions via email within 1 - 2 business days.
Core Returns: What is a Core?
We want to ensure that you are refunded your core charge as soon as possible, but in order to do this, we need your help to follow these guidelines.
• We require that all cores be returned within 21 days from delivery date of product requiring core charge. Failure to do so can result in forfeiture of the entire core charge return
• All cores must be returned to original warehouse that original shipment was sent from. In most cases, we do not provide return shipping labels for cores, if a return label is provided in the original shipment, use this tag. If one is not included, contact us immediately, and we can provide you with the correct address of where the core(s) must be returned to. DO NOT rely on the return address on the original label as a source for where to ship to
• If cores are shipped to the incorrect warehouse, your core money will be returned less the shipping cost for us to send the core(s) to the correct warehouse, or if you deferred the core you may be charged for the shipping amount
• Cores that have been disassembled or have missing and/or damaged major components will not receive full core credit
• Cores must be returned in the original packaging the new part was shipped in. Most manufacturers design special packaging for their products to protect them while in transit. Failure to reuse this packaging can result in damage to the core(s) which could lead to the forfeiture of your core return. Specifically regarding Bosch, they have a strict policy that core returns must be in their original packaging. If the original packaging is not used, the part number must be clearly identifiable on the part itself. If neither of these core criteria are met, no core return will be available.
• Returned cores must match the same vehicle fitment as the new part purchased. For instance, if you purchase a replacement turbo for a 2007.5-2012 Dodge Ram 6.7L Cummins, the returned core must have a fitment of that same application.
• We have the right to alter this policy (i.e. extend the terms) for any reason. If you have an outstanding circumstance, contact us
General/New Returns
• All products must be in new/uninstalled/UNOPENED condition with all the parts included
• All products must be sent back in NEW and original packaging
• Returns will not be accepted after 30-day from date received
• Customer is 100% responsible for shipping costs (Ex: If you return an item and did not originally pay shipping costs, the original shipping cost incurred by us will be deducted from your refund)
• Credit will be issued after the product is inspected and found to be in new condition
• ALL returns are subject to a 5% restocking fee. Additional fees may be incurred on non-stocking items which is determined by the manufacturer
• Refusal of a shipment will result in an automatic restocking fee determined upon the cost of fees associated with the refusal
General/New Returns will NOT be accepted under the following conditions:
• Product has been installed or attempt of install
• Product has been damaged
• Product is shipped without the original packaging, manuals and/or parts
• Product Packaging has been opened and or seal has been broke on the product
• Custom tuners & tune packs such as, EFI Live, EZ LYNK, HP-Tuners, Hydra tuner are not available for return
Product Warranties
• Moore’s Diesel Performance honors all manufacturer warranties
• Any product that carries a manufacturer's warranty must be warrantied through its respective manufacturer
• Installed components which have failed, such as, turbo, injectors, injection pumps, etc., must be removed/shipped back to its manufacturer for inspection before replacement
• Moore’s Diesel Performance is not responsible for shipping products to manufacturers for inspection or the return shipping to the end user
• Labor time is not paid by Moore’s Diesel Performance
• Manufacturers will only pay labor if stated in the manufacturer’s warranty
• All products manufactured by Moore’s Diesel Performance carry a one year manufacturer defect warranty
