Earls PCV Breathers - Set of 2 Pieces - 3434116ERL cat-back-exhaust Increases of up to 7

Increases of up to 7 HP and 7 FT/LB over the stock exhaust

8 V8 1991 Ford F-350 Custom 460/7

4L V8 1978 Ford E-100 Econoline 460/7

7L V8 1959 - 1966 Ford Fairlane   352/5

4L V8 1967 - 1969 Ford Mustang Base 390/6

Earls PCV Breathers - Set of 2 Pieces - 3434116ERL cat-back-exhaust Increases of up to 7Overview: PCV BreatherMachined from 6061 T6 Billet aluminum, the PCV Breather matches Earl's breather in appearance. The difference is the PCV Valve hidden inside. These breathers are available with either 3 8" slip on hose connection or #6 AN hose end. Now you can eliminate that unsightly PCV valve. Features: 6061 T6 Billet Aluminum PCV Valve Hidden Inside Eliminate Unsightly Valve Including Rubber Grommet Use Push In Twist In Breather Breather