PDI Big Boss Exhaust Manifold — CAT C13 ACERT (2004.5–2010)

Big Boss exhaust manifold for 2004.5–2010 CAT C13 ACERT. Improves airflow and reduces EGTs over the restrictive twin-turbo OEM manifold.

OEM cross: 320-1125, 353-3398, 235-9400, 229-8863.

1-year unlimited-mile warranty.

Genuine PDI part supplied and installed by TDC Truck and Diesel.