Exhaust Headers, Manifolds and Components

Bully Dog

Bully Dog Big Rig Exhaust Manifold Ceramic Coated for Paccar 13-19 Paccar MX(OEM part# 9886 AND 9887.)

$2,435.00

SKU: B00J 85401

In Stock
In Stock
Ships by Jun 20
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Bully Dog ceramic coated manifold boosts PACCAR MX or MC engine performance with maximum airflow and up to 30 extra horsepower. Its durable American-made construction with a pressure-fitted design eliminates exhaust leaks. The heavy-duty ceramic coating withstands extreme heat.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBully Dog
Part NumberB00J 85401

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy