DEI Spark Plug Wire Markers - Numbered Shrink Sleeve (Set of 8) Trailer Components & Accessories The exhaust port and bolt

The exhaust port and bolt pattern are raised

These filters are built durable to last for a long time

Black Thermal Coat

1967-1973 Ford Mustang

Body - Carbon steel

DEI Spark Plug Wire Markers - Numbered Shrink Sleeve (Set of 8) Trailer Components & Accessories The exhaust port and boltProduct Description: Spark Plug Wire Markers Cylinder Markers Numbered Shrink Sleeve Set of 8 Since 1995, DEI has been a pioneer in the automotive performance industry. Wrapping the exhaust system or headers on a vehicle with DEI's exhaust wrap will reduce under hood temperatures up to 70% while improving performance and protecting components from extreme power robbing heat.