Give your 5.9L turbo diesel engine the ultimate breathing upgrade with this full 3.5" MEGA pre and post intercooler intake system. It replaces restrictive factory 3" plumbing and intake manifolds with massive 3.5" mandrel-bent tubing designed for maximum airflow.

Equipped with a rugged 1/2" CNC laser-cut flange, heavy-duty 5-ply silicone couplers, and stainless T-bolt clamps, it handles boost with ease. Plus, with four 1/8" NPT ports ready for your favorite sensors, your Cummins is set to dominate the road.