CUMMINS BIG BOSS EXHAUST MANIFOLD

Forged from HSM material, PDI’s manifolds eliminate the warping and cracking problems of an OEM manifold. With a high moly content, the worry of center-divider failure and metal dissipation is eliminated. Each manifold is designed with a full-contact joint, which allows for heat and flex at the joints, while holding a tight, efficient seal. Improved air flow helps to lower exhaust temperatures, reduce turbo lag, and increase horsepower and torque.

Available for Cummins ISX 1999-2010 Engines