{"product_id":"hsp-diesel-max-flow-bridge-and-cold-side-tube-2004-5-2005-6-6l-duramax-lly","title":"HSP Diesel Max Flow Bridge and Cold Side Tube 204-HSP | 2004.5-2005 6.6L Duramax LLY","description":"\u003cp\u003eThe \u003cstrong\u003e204-HSP\u003c\/strong\u003e, also known as the HSP Max Flow Bridge and Cold Side Tube, is designed for 2004.5–2005 LLY Duramax-equipped Chevrolet and GMC trucks. This upgrade improves airflow, enhances performance, and cleans up your engine bay with a bold, functional design.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the HSP Max Flow Bridge and Cold Side Tube?\u003c\/h3\u003e\n\u003cp\u003eThe factory bridge and cold side pipe on the LLY are known weak points. They are restrictive, poorly designed for airflow, and inefficiently bent, limiting performance. The factory bridge is a major source of power loss and boost leaks.\u003c\/p\u003e\n\u003ch3\u003eWhat Makes the HSP Max Flow Bridge and Cold Side Tube Different?\u003c\/h3\u003e\n\u003cp\u003eBoth the bridge and cold side tube are upgraded to a 3\" diameter, providing a significant improvement in airflow. The Max Flow Bridge is precision-cast aluminum, CNC-machined for optimal internal flow and strength. It is pressure-tested to over 100 PSI and secured using two M8 studs, 12-point nuts, and a high-strength O-ring to eliminate the risk of boost leaks.\u003c\/p\u003e\n\u003cp\u003eThe Cold Side Tube features a 3\" mandrel-bent design with sweeping bends that reduce turbulence and increase efficiency. This setup pairs best with factory or drop-in replacement turbochargers while maintaining OEM-style intercooler routing.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Bridge Neck (HSP-IN-209)\u003c\/li\u003e\n\u003cli\u003e1x Bridge (HSP-IN-222)\u003c\/li\u003e\n\u003cli\u003e1x Coldside Tube (HSP-IN-213)\u003c\/li\u003e\n\u003cli\u003e1x Bridge Neck O-Ring (RFB-670-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 1\/8'' NPT Brass Plug (RFB-811-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x Bridge Neck Stud (RFB-902-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x Bridge Neck 12-Point Nut (RFB-903-RFAB)\u003c\/li\u003e\n\u003cli\u003e24x 5\/8\" Heater Hose (RFB-401-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x 5\/8\" Worm Gear Clamp (RFB-403-RFAB)\u003c\/li\u003e\n\u003cli\u003e2x 3\" T-Bolt Clamp (RFB-422-RFAB)\u003c\/li\u003e\n\u003cli\u003e1x 3\"x4\" Straight Boot (RFB-430-RFAB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eLLY: 2004.5–2005 (VIN Code 2)\u003cbr\u003e\u003cem\u003eHow to identify VIN Code:\u003c\/em\u003e The 8th character of the VIN indicates the engine code. The 10th character indicates the model year.\u003c\/p\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncreased performance and turbo spool-up\u003c\/li\u003e\n\u003cli\u003ePowder coat options to enhance engine bay aesthetics\u003c\/li\u003e\n\u003cli\u003eHigh-strength silicone boots\u003c\/li\u003e\n\u003cli\u003eEnhanced engine sound\u003c\/li\u003e\n\u003cli\u003e3\" Mandrel-bent cold side tube\u003c\/li\u003e\n\u003cli\u003e3\" Precision-cast aluminum CNC-machined bridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHSP NO BS LIMITED LIFETIME WARRANTY\u003c\/strong\u003e\u003cbr\u003eHSP stands behind the quality of their products and offers a No BS Warranty to ensure customer confidence and product reliability.\u003c\/p\u003e","brand":"HSP","offers":[{"title":"Default Title","offer_id":51935265292571,"sku":"204-HSP","price":845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0962\/5757\/3147\/files\/hsp-diesel-204-hsp-gb-04-5-05-chevrolet-gmc-max-flow-bridge-cold-side-ink-black.webp?v=1774536913","url":"https:\/\/wwmperformance.com\/products\/hsp-diesel-max-flow-bridge-and-cold-side-tube-2004-5-2005-6-6l-duramax-lly","provider":"WWM Performance","version":"1.0","type":"link"}