Bully Dog 1993-03 Detroit Series 60 Big Rig Ceramic Coated FTP Exhaust Manifold 85301 (88100)

The Bully Dog Big Rig Ceramic Coated FTP Exhaust Manifold 85301 is specifically designed for Detroit Diesel Series 60 engines. It is a performance upgrade that serves as a direct OEM replacement for stock manifolds on specific truck makes and engine years.

Vehicle Compatibility

This manifold is engineered for Kenworth and Peterbilt chassis equipped with the following engines:

• Engine Types: Detroit Series 60 (12.7L and 14.0L)

• Model Years: 1995–2003

• Engine Specifics: Typically fits 12.7L engines from '93-'03 and 14.0L engines from '01-'03.

Important Note: While the 85301 model is for Kenworth and Peterbilt, Bully Dog offers a sister model (85300) for Freightliner and Western Star trucks. Always verify your truck's chassis brand before purchasing.

OEM Cross-References

The 85301 manifold is a direct replacement for the following stock Detroit Diesel part numbers:

• 23519348

• 23511978

• 23512986

Performance Benefits

• Increased Airflow: Provides up to 18% more airflow over stock through hand-ported and polished channels.

• Lower Temperatures: Reduces Exhaust Gas Temperatures (EGTs) by 80-100°F and under-hood temperatures by up to 300°F.

• Efficiency Gains: Users typically see an improvement of 0.2 to 0.3 MPG and a boost of approximately 30 HP to the rear wheels.

• Durability: Features thicker manifold flanges and walls to prevent the common cracking or warping found in OEM versions.