Bully Dog Big Rig Ceramic Coated Exhaust Manifold For 2010-2013 Paccar MX 13 12.9L in Kenworth & Peterbilt 2016-2021 BMW M240i/ 340i/ 440i 5 extra quarts of fluid

5 extra quarts of fluid over stock

The 66-19180 includes heavy-duty laser-cut powder-coated steel front top mount coil spring spacers providing the ideal 1

1 HP & +26

The Pulsar is an in-line module that clips onto the truck’s stock PCM

Cognito Patented Pitman Idler Support kit

Bully Dog Big Rig Ceramic Coated Exhaust Manifold For 2010-2013 Paccar MX 13 12.9L in Kenworth & Peterbilt 2016-2021 BMW M240i/ 340i/ 440i 5 extra quarts of fluidBully Dog Big Rig premium ceramic coated exhaust manifolds are the fastest flowing exhaust manifolds in the industry. Designed for superior heat control and exhaust flow, they help your turbo spool more quickly. Whether you are looking to replace a faulty or leaky exhaust manifold on your rig, or just want to experience the difference a performance exhaust manifold can make in your daily driving, you can expect higher power output, lower temps and