PDI Big Boss CAT C12 Exhaust Manifold 3406C Turbo That's why our camshafts are

That's why our camshafts are brand new and never remanufactured

When rebuilding or servicing a D13 engine

Kenworth T800 1994-2006

By opening up the manifold in key areas airflow will increase up to 35% leading to lower air intake temperatures resulting in power gains of up to 20hp

PDI Big Boss CAT C12 Exhaust Manifold 3406C Turbo That's why our camshafts areAvailable for: 1998 2004 CAT C12 Engines CAT manifold CARB EO# D773 2 Key Benefits 20% increase in airflow over stock 75 100 degree cooling of EGTs Made in the USA Warranty: 2 Year Unlimited Mile Warranty Requirements: CAT C12 INSTALL KIT We have designed our exhaust manifolds to maximize the exhaust air flow to reduce turbo lag time and cool exhaust temperatures. In the design of the manifold each port is analyzed and tested to provide a balanced