{"id":9970436309232,"title":"2002-2004 (CA) GM 6.6L Duramax OEM Length Replacement High Flow Up-Pipe Kit","handle":"replacement-high-flow-up-pipe-kit-2002-2004-ca-gm-6-6l-duramax-oem-length","description":"\u003ch2\u003eReplacement High Flow Up-Pipe Kit\u003c\/h2\u003e\n\u003cp\u003eThe undersized OEM up-pipes are not corrosion resistant and introduce restrictions to the system, impairing turbo charger efficiency and increasing pumping loss. The PPE High-Flow Up-Pipes tackled these issues with a stainless-steel construction and a non-restrictive design. By enlarging the OEM bottle neck and eliminating the tight bends, PPE up-pipes can increase exhaust airflow by up to 46%, allowing for a smooth exhaust process.\u003c\/p\u003e\n\u003cp\u003eThese up-pipes are a direct bolt-on to your OEM exhaust manifolds. Replacement up-pipe gaskets are also included for a hassle-free installation.\u003c\/p\u003e","published_at":"2026-04-04T18:41:44-07:00","created_at":"2026-04-04T18:41:44-07:00","vendor":"Pacific Performance Engineering","type":"","tags":["01 LB7 CA 116120204","02-04 LB7 CA 116120405","11-16 LML 116122000","116120000 01-04 LB7 FED","17-21 L5P 116122000","2001-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi4378570","2001-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi7516583","2001-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi6239378","2001-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi6510316","2002-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi6874294","2002-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi4533702","2002-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi8733761","2002-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi2238369","2003-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi6051154","2003-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi4501871","2003-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi2470648","2003-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi6095730","2004-chevrolet-silverado-2500hd-8-cyl-6-6-liter-turbo-esi8053781","2004-chevrolet-silverado-3500hd-8-cyl-6-6-liter-turbo-esi4286045","2004-gmc-sierra-2500hd-8-cyl-6-6-liter-turbo-esi4127483","2004-gmc-sierra-3500hd-8-cyl-6-6-liter-turbo-esi7379111","GM","LLY 116120607","LLY\/LBZ 116120710","LMM 116121115","Manifolds and Up-Pipes"],"price":49999,"price_min":49999,"price_max":49999,"available":true,"price_varies":false,"compare_at_price":0,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":49501514596592,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"116120204","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"2002-2004 (CA) GM 6.6L Duramax OEM Length Replacement High Flow Up-Pipe Kit","public_title":null,"options":["Default Title"],"price":49999,"weight":5670,"compare_at_price":0,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878072.jpg?v=1775353306","\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878476.jpg?v=1775353306"],"featured_image":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878072.jpg?v=1775353306","options":["Title"],"media":[{"alt":null,"id":44161595048176,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878072.jpg?v=1775353306"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878072.jpg?v=1775353306","width":1200},{"alt":null,"id":44161595080944,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878476.jpg?v=1775353306"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/2002-2004-_CA_-GM-6.6L-Duramax-OEM-Length-Replacement-High-Flow-Up-Pipes-Pacific-Performance-Engineering-142878476.jpg?v=1775353306","width":1200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2\u003eReplacement High Flow Up-Pipe Kit\u003c\/h2\u003e\n\u003cp\u003eThe undersized OEM up-pipes are not corrosion resistant and introduce restrictions to the system, impairing turbo charger efficiency and increasing pumping loss. The PPE High-Flow Up-Pipes tackled these issues with a stainless-steel construction and a non-restrictive design. By enlarging the OEM bottle neck and eliminating the tight bends, PPE up-pipes can increase exhaust airflow by up to 46%, allowing for a smooth exhaust process.\u003c\/p\u003e\n\u003cp\u003eThese up-pipes are a direct bolt-on to your OEM exhaust manifolds. Replacement up-pipe gaskets are also included for a hassle-free installation.\u003c\/p\u003e"}