Bully Dog 2011-24 Cummins ISX15 and X15 Big Rig Ceramic Coated FTP Exhaust Manifold 85106 (88207)

The Bully Dog Big Rig Ceramic Coated FTP Exhaust Manifold (Part #85106 / 88207) is specifically designed for modern heavy-duty Cummins engines.

Vehicle & Engine Compatibility

This manifold is a direct performance replacement for the following engine platforms:

• Engines: Cummins ISX15 and X15

   

• Engine Codes: CM2250 and CM2350

   

• Model Years: Typically 2011–2024

   

• Emissions Profile: Designed for engines equipped with EGR (Exhaust Gas Recirculation) systems.

   

OEM Cross-Reference

If you are looking to verify fitment against your current factory part, this unit replaces the following stock manifold components:

• Main Part Number: 3687032

   

• EGR End Section: 8488

   

Key Performance Benefits

The "FTP" in the name stands for Full Tilt Performance, the engineering partner for these manifolds. Because it is hand-ported and ceramic-coated, it offers several advantages over the stock cast-iron manifold:

• Airflow: Provides approximately 18% more airflow than the OEM unit.

   

• Temperature Control: The ceramic coating reduces radiating engine bay temperatures by up to 300°F and lowers Exhaust Gas Temperatures (EGTs) by 80–100°F.

   

• Efficiency: Users typically see a fuel economy improvement of 0.2 to 0.3 MPG and a power increase of up to 30 HP.

   

• Durability: Unlike factory manifolds that are prone to warping and cracking under extreme heat cycles, this version features thicker flanges and walls to prevent leaks.