Sanderson Block Hugger Headers - 1-3/4" Primary - 3" Collector - Steel - Ford FE-Series - Ford Passenger Car 1965-71 Threaded Nut Insert This device protects the ECU

This device protects the ECU input from damaging flyback voltage which occurs when the transbrake is released

Horseshoe Type

Maybe one for a Viper or even a Harley Davidson

JT (2020-current)

HTD and V-Belt styles

Sanderson Block Hugger Headers - 1-3/4" Primary - 3" Collector - Steel - Ford FE-Series - Ford Passenger Car 1965-71 Threaded Nut Insert This device protects the ECUProduct Description: Headers Block Hugger 1. 75 in Primary 3 in Collector Steel Natural Ford FE Series Ford Passenger Car 1965 71 Pair Founded in 1964, Sanderson started out producing custom headers for the emerging hot rod scene. They have since grown and expanded their product line to include headers and exhaust accessories for a wide variety of late model applications.