DIESELR Corp - 6.6L L5P Duramax 4" Delete Pipe Downpipe Back (2017-2026)

Built for Strength. Designed for Performance.

Upgrade your exhaust system with the DIESELR Cat & DPF Race Pipes, engineered for 2017-2026 GM 2500/3500 6.6L Duramax L5P. Constructed from heavy-duty 16-gauge T409 stainless steel, these pipes improve exhaust flow, durability, and performance for serious truck owners.

Product

✔ Durable T409 Stainless Steel – Built to withstand harsh conditions for long-lasting performance. ✔ Mandrel-Bent Construction – Ensures maximum airflow and a perfect fit. ✔ Leak-Free Connections – Precision-engineered flanges for a secure, tight seal. ✔ Quick, Hassle-Free Install – Includes contour bent hangers and TorcTite® clamps for a straightforward installation.

Performance Benefits:

✔ Increased Horsepower & Torque – Enhanced exhaust flow lets your Duramax run stronger. ✔ Lower EGTs – Reduces exhaust gas temperatures, improving efficiency and engine longevity. ✔ Deep, Aggressive Sound – Delivers a throaty, bold exhaust note.

Fitment & Compatibility:

✔ Fits 2017-2026 GM 2500/3500 6.6L Duramax L5P. ✔ Compatible with EC-CC/SB-LB-Dually cab and box configurations. ✔ OEM-Style 4-Bolt Flange – Ensures a direct, secure factory-like fit. ✔ Important Fitment Note: Only fits models equipped with the OEM-style 4-bolt flange on the turbo direct pipe.

Important Disclaimer:

⚠ For Off-Road Competition Use Only – Requires aftermarket tuning for proper operation. ⚠ Regulatory Compliance – Installing this system on emission-controlled vehicles may violate local laws. Verify regulations before installation.

Maximize Performance with DIESELR Race Pipes

The DIESELR Cat & DPF Race Pipes deliver stronger performance, lower EGTs, and a deeper exhaust tone—all in a high-quality, performance-driven system.