OTR Filters Round Pit Tuning Air Filter Element - 6.625 in Diameter - 3 in Tall - Gray - Holley 4150 Flange JOE14751-B 375"AdjusterMcLeod Industries are perhaps best

375"AdjusterMcLeod Industries are perhaps best known for their McLoed clutches

Adjustable by-pass pressure using optional +10 psi and +15 psi springs

test and manufacture specialized products aimed exclusively at racer's needs

Dirt Rocker Panels add a finishing touch to the lower body

with extremely tight tolerances for superior compression sealing

OTR Filters Round Pit Tuning Air Filter Element - 6.625 in Diameter - 3 in Tall - Gray - Holley 4150 Flange JOE14751-B 375"AdjusterMcLeod Industries are perhaps bestProduct Description: Air Filter Element Round Pit Tuning 6. 625 in Diameter 3 in Tall Paper Gray Holley 4150 Flange Sold Individually US based OTR Filters was founded on developing air filtration solutions that help engines breathe easier, run faster, and perform at their best. With a wide range of filters for everything from street performance to hardcore racing, OTR Filters combines excellent performance with maximum engine protection.