2001-2016 6.6L Duramax LB7 LLY LBZ LMM LML Generic Exhaust Up-Pipe

Replaces the fragile, failure-prone factory OEM bellows with a heavy-duty design to permanently eliminate exhaust leaks, lost boost pressure, and engine bay noise.

Features smooth, mandrel-bent unrestrictive tubing that maximizes exhaust gas velocity heading directly into the turbocharger housing.

Equipped with reinforced interlocking bellows featuring heavy-duty internal sleeves to protect the flex section from extreme exhaust velocity and prevent cracking.

Custom-profiled with a precision indentation on the passenger-side pipe to guarantee a secure, perfect clearance against the tight factory firewall.

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