BD Diesel 1043800 Up-Pipes Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features: - 304 stainless steel precision cast mounting flanges eliminate exhaust tubing blowouts and ensures correct fitment - 304L 2-inch stainless tubing prevents loss of heat energy and will not corrode like aluminized steel or 409 stainless - Larger bore (1.8" ID) internally shielded 304 stainless bellows, eliminates restrictive 1.3" ID OEM bellows maximizing exhaust energy to drive turbocharger - Smooth mandrel bends improve exhaust gas flow - tubing ID is not compromised - Increased turbo response with lower EGT's - User must have aftermarket downpipe, does not fit with OE Downpipe Replaces the factory exhaust up-pipes (exhaust manifold to the turbo) which are prone to leakage due to the deterioration. BD up-pipes are designed to minimize restriction to the turbo utilizing internally shielded expansion bellows. The BD up-pipes are a durable, longer-life replacement for this common problem and are perfect as an upgrade while performing other engine or transmission repairs. INSTALL TIME --------------------------------------------------------------- - 5 Hours WARRANTY --------------------------------------------------------------- Parts - 12-Months - 24,000 Miles Note - Surface rust not eligible NOTE --------------------------------------------------------------- - Aftermarket downpipe required - Some modification necessary EMISSIONS --------------------------------------------------------------- - This product does not require an EO in California. By nature of its design, it is legal for sale and use in all 50 states. Replacement parts included. (EMS:4)