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HSP Diesel Intercooler Bundle Kit for 2004.5-2005 Chevrolet and GMC LLY Duramax
HSP Diesel

HSP Diesel Intercooler Bundle Kit for 2004.5-2005 Chevrolet and GMC LLY Duramax

MPN: HSP-D-292-HSP
$459
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Colours and prices as published by HSP Diesel · verified 9/8/2026

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HSP Intercooler Bundle Kit for 2004.5-2005 Chevrolet / GMC Part Number: 292-HSP The 292-HSP, known as the Intercooler Bundle Kit, is designed for the 2004.5-2005 LLY Duramax Chevrolet and GMC trucks. It's one of the best starting points for modifying your LLY Duramax. What Is the HSP Intercooler Bundle Kit for the LLY Duramax? This kit is a great first upgrade—whether youre replacing failing factory parts, boosting performance, or adding a pop of color under the hood. Its made to work for every type of build, no matter your goals. Hot Side Intercooler Tube The factory hot side pipe on LLY trucks is a known failure point due to its routing against the power steering line, which can eventually rub through and cause a boost leak. HSPs upgraded design reroutes directly into the intercooler to improve airflow, reduce temps, and add clearance. Constructed from a 3" mandrel-bent tube, it's available in various powder coat finishes to upgrade your engine bays appearance. Cold Side Intercooler Tube The 3" mandrel-bent cold side tube is optimized for maximum airflow and minimal turbulence. It connects to the factory-style bridge for superior efficiency, flow, and performance—while retaining all necessary OEM components. Whats

Included:

1x Hotside Tube (HSP-IN-207) 1x Factory-Style Coldside Tube (HSP-IN-213) 1x 2.25" T-Bolt Clamp (RFB-420-RFAB) 3x 3" T-Bolt Clamp (RFB-422-RFAB) 1x 3"x4" Straight Boot (RFB-430-RFAB) 1x 2.25" to 3" Reducer Boot (RFB-441-RFAB) 1x 2.25" T-Bolt Clamp (RFB-420-RFAB) 1x 3" T-Bolt Clamp (RFB-422-RFAB) 1x 2.25" to 3" Reducer Boot (RFB-441-RFAB) Vehicle

Fitment:

LLY Duramax: 2004.5-2005 (8th digit of VIN = 2) How to Check: The 8th character of the VIN indicates the engine code. The 10th character is the model year. *Special

Note:

This kit is ideal for factory or drop-in replacement chargers, as it follows OEM-style routing. Overview: Pressure tested to 100 PSI 3" Mandrel-bent tubes Works with factory emissions Increase in power Increase in airflow Powder coat options to dress up the engine bay Great for stock applications Our Warranty HSP “No BS” Limited Lifetime Warranty We believe in our products and stand firmly behind every part we manufacture. Our No BS Warranty is designed to give you confidence with clear terms and easy support. For full warranty details, click here.

Warranty
Warranty based on supplier terms

HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.

Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

HSP Diesel warranty policyView complete warranty

Product conditions

Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Return eligibility
HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
HSP Diesel
Warranty duration
Product-specific duration not stated; see supplier terms
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–10 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
HSP Diesel

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.