Key Features
A simple yet effective performance upgrade. Increases airflow and improves air flow characteristics.
3-1/2 inch mandrel-bent 6061 aluminum tubing (two-piece design) with CNC machined billet flanges. Easy to install.
Includes HPS 4-ply reinforced silicone couplers and heavy-duty 100% stainless steel T-bolt clamps.
No modifications required during installation, no re-tuning needed, and will not trigger a CEL. Lightweight.
100% satisfaction guarantee. HPS Performance is here to help troubleshoot any technical issues or questions.
The HPS Polished Intercooler Charge Pipe Cold Side (Part Number 17-120P) is a simple and effective product. Enjoy a performance upgrade over the OEM restrictive plastic intercooler piping for your 2017-2020 GMC Sierra 3500HD Duramax 6.6L V8 Diesel Turbo L5P. Built for easy installation, this part helps provide quicker acceleration, improved fuel economy, easier towing, and long-term reliability. Includes flexibility for engine movement. No tuner installation required. Increases airflow and improves air flow characteristics. 3-1/2 inch mandrel-bent 6061 aluminum tubing features CNC-machined billet flanges and a welded bung to connect the existing auxiliary sensor. The kit includes HPS's signature high-temperature 4-ply reinforced silicone couplers and durable 100% stainless steel T-bolt clamps. The installation manual features easy-to-follow photos and instructions to guide you through the entire process. Not CARB compliant. Designed for use with the factory intercooler. This product fits the 2017-2020 GMC Sierra 3500HD Duramax 6.6L V8 Diesel Turbo L5P.
Before You Order
〇 Regarding Import Consumption Tax
At the Shafutoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
Our entire product database is based on North American vehicles (USDM). Please verify whether the product can be installed on a Japanese vehicle (JDM) before placing your order. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to investigate for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our homepage, it does not necessarily guarantee a direct fit for Japanese market vehicles without modification.
All products have been translated into Japanese using translation software. Due to the possibility of confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow yourself enough time when ordering. If you are in a rush, please contact us in advance to confirm delivery dates. Note that all items are transported via air freight. We do not use sea freight.
○ Regarding Japanese Vehicle Inspection Compatibility
All products we handle are generally designed and manufactured outside of Japan. Please be aware that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents or similar paperwork for these regulations. Therefore, all parts are sold for the purpose of "use on tracks, private property, or off-road," and installation and usage are at your own risk.
○ Regarding Warranties
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, packaging boxes or the products themselves may sustain shipping damage. Please understand that we will only provide returns, refunds, or replacements for items with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through us." We do not provide support through other companies or distributors located within Japan.