PDI Big Boss Paccar MX13 Exhaust Manifold | 2013.5-2016 6.7 turbo a 20% airflow increase over

a 20% airflow increase over a stock manifold

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

C16 and 3406E engines

Direct OEM replacement

High Quality 17:1 Pistons and Liners

PDI Big Boss Paccar MX13 Exhaust Manifold | 2013.5-2016 6.7 turbo a 20% airflow increase overAvailable for: Paccar MX13 Model Year 2013. 5 2016 Key Benefits 20% average airflow increase in key areas Up to 100 degree cooler 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