PDI Big Boss CAT C13 Acert Exhaust Manifold 20R5809 Tuning has always been the

Tuning has always been the simplest and most efficient way to access the fuel economy and horsepower that you deserve

This kit also includes all new hardened bolts to ensure proper installation of your manifold

20% increase in airflow over stock in key areas

This upgraded PDI oil cooler element is engineered to improve heat transfer and oil temperature control compared to OEM-style units

Part # 9445C

PDI Big Boss CAT C13 Acert Exhaust Manifold 20R5809 Tuning has always been theAvailable for: 2004. 5 2010 CAT C13 Engines Key Benefits 20% increase in airflow over stock 75 100 degree cooling of EGTs Made in the USA Warranty: 2 Year Unlimited Mile Warranty 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 flow to the turbocharger. Big Boss Exhaust Manifolds produce,