PPE High-Flow Exhaust Manifolds and Up-Pipes; Black Ceramic (11-16 6.6L Duramax Sierra 3500 HD)Find parts that fit my vehicle

High-Performance Exhaust Upgrade. The PPE Exhaust Manifolds and Up-Pipes system delivers superior exhaust flow and reduced back-pressure for 2011-2016 6.6L Duramax GMC Sierra 3500 HD models. Designed to improve turbo response and engine efficiency, this upgrade is ideal for performance-focused drivers and towing enthusiasts. With pre-drilled bosses for EGT gauge sensors, it’s a functional and reliable solution for power and monitoring enhancements.

Construction and Appearance. Featuring a combination of black ceramic and raw metal finishes, the system includes high-flow exhaust manifolds cast from high-sil moly iron and up-pipes crafted from 11-gauge, 2-inch diameter steel tubing with a 0.120-inch wall thickness. These durable materials ensure long-lasting resistance to heat and pressure, while providing better flow compared to restrictive factory components.

Installation. Designed as a direct replacement, this kit includes everything needed for a complete install, including manifold and up-pipe gaskets, socket-head bolts, and a down-pipe support bracket. The built-in 1/8-inch NPTS ports make it easy to integrate EGT sensors, supporting adaptable performance monitoring for tuned or high-load applications.

Warranty. Backed by a limited 3-year warranty, the PPE Exhaust Manifolds and Up-Pipes kit offers dependable coverage for workmanship and materials, providing confidence for long-term performance upgrades.

Application. This PPE Exhaust Manifolds and Up-Pipes system fits 2011-2016 6.6L Duramax GMC Sierra 3500 HD models. It enhances exhaust efficiency and engine responsiveness, making it an essential upgrade for anyone seeking improved power delivery and thermal control in heavy-duty or tuned diesel applications.

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