INSTALL INSTRUCTIONS MBRP GM8427 Instructions Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Greater Heat Retention 20% Greater Flow Over Stock Richer Diesel Sound Will not Affect Emissions (DPF system or the Urea injection system) Gains of +21 HP and +24 lb/ft Torque Will not work with a 3 bolt flange style connection Not to be sold in California MBRP Warranty and Terms Installer Series: Three (3) Years warranty on Aluminized SteelXP Series: Lifetime warranty on 409 Stainless SteelPLM Series: Limited One (1) Year warrantyPro Series: Lifetime warranty on 304 Stainless SteelBlack Series: One (1) Year warranty on the coating and a three (3) Years Warranty on the exhaust componentsPerformance Series: Two (2) Years warranty on Aluminized Steel Powersports Sports Series: 1 Year WarrantyPerformance Series: 1 Year WarrantyTrail Series: 2 Year WarrantyRace Series: 2 Year Warranty Warranty Information: The MBRP Inc. warranty applies only to defects in material & workmanship of MBRP Inc. products to the original purchaser on record, providing that installation was completed on the original vehicle for which it was designed and tested for. MBRP Inc. will not warranty the cost of removal or re-installation of this product nor does the warranty apply if the product has been damaged by accident, abuse, misuse or misapplication. The sole obligation of MBRP Inc. will be to repair or replace at its discretion.