OTR Filters Round Pit Tuning Air Filter Element - 6.625 in Diameter - 3.75 in Tall - Gray - Holley 4150 Flange IA0-1874-A01-SF-076-52 Lightweight compact design

Lightweight compact design

cut-away section of tool allows visual inspection of valve's operation

small body and monotube

2004-2008 Subaru Impreza

OTR Filters Round Pit Tuning Air Filter Element - 6.625 in Diameter - 3.75 in Tall - Gray - Holley 4150 Flange IA0-1874-A01-SF-076-52 Lightweight compact designProduct Description: Air Filter Element Round Pit Tuning 6. 625 in Diameter 3. 75 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.