Exhaust Up-Pipe For 2001-2016 6.6L Chevrolet GMC Duramax LB7 LLY LBZ LMM LML Dual Sider

Rather than repairing them one by one, it is better to solve the issue once and for all. Vigor Diesel’s Dual Side Up Pipe Kit is a complete system upgrade designed for Duramax owners seeking ultimate performance and reliability. This kit replaces both the fragile factory driver-side and passenger-side up pipes simultaneously, ensuring pressure balance and airtightness across the entire exhaust system.

Why Choose a Dual Kit Instead of Single Side Replacement?

• Total System Pressure Balance: By adopting a smooth, constant-diameter flow design on both sides simultaneously, the kit eliminates flow resistance discrepancies between old and new piping. This significantly optimizes the balanced response of the turbocharger, providing more linear power output and effectively reducing Exhaust Gas Temperatures (EGT).

• Synchronized Reliability: If one side has already started "hissing" due to a leak, the other side is typically near the end of its lifespan. By installing the dual kit at once, you not only recover lost boost pressure but also avoid the high labor costs associated with a second tear-down and installation.

• Elite Thermal Protection: This kit includes two sets of specialized black high-temperature thermal wraps. They not only block radiant heat up to 1800°F to protect surrounding fragile wiring harnesses and lines, but also accelerate turbo spool-up by retaining internal exhaust thermal energy.

• Heavy-Duty Bellows Construction: Both pipes are equipped with upgraded multi-layer stainless steel flexible bellows. This structure is specifically reinforced against the high-frequency vibrations of the Duramax engine, completely solving the defect where factory parts easily crack under heavy towing or high-boost conditions.