Outerwears 3" Breather Pre-Filter - Yellow 20600S Race Rotor for PN 8351

Race Rotor for PN 8351

Chevy V8 / Small Block Ford

1980-1982 Mercury Cougar

MSD Single RPM Module - 6400 RPM ASY11535

Throttle blade diameters are 1-7/16 for the primarys and of 1-11/16 diameter for the secondarys

Outerwears 3" Breather Pre-Filter - Yellow 20600S Race Rotor for PN 8351Outerwears was created to fulfill a desperate need to keep the Air filter and engine clean during off road racing. Racers and engine builders were experiencing loss of horsepower and engine damage due to sand, dirt, and other debris prematurely packing (clogging) the filter and often passing through the filter into the engine. Filters loading up with dirt meant loss of horsepower and in many cases loss of a race. Race crews were noticing severe engine