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

Crafted from extra-thick, industrial-grade T-304 stainless steel to handle extreme EGT cycling without cracking, warping, or leaking under high-pressure conditions.

Features heavy-duty interlocking inner liner bellows with internal sleeves that protect the flex section from high-velocity exhaust blasts to prevent fatigue-cracking permanently.

Completely seals the exhaust system to ensure maximum drive pressure reaches the turbo housing, eliminating turbo lag and restoring crisp throttle response.

Jig-built and precision-welded with exact OE-style flanges to guarantee an absolute airtight, direct bolt-on seal to your factory exhaust manifolds and turbo inlet.

Fit: 2001–2016 Chevrolet Silverado and GMC Sierra 2500HD / 3500 trucks equipped with 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM, LML — Passenger Side ONLY; Will NOT fit 3500/4500/5500 Cab & Chassis commercial models).