AVO Hi-Flow Panel Air Filter for 02-07 WRX & STi

The AVO high-flow panel filter for the 02-07 WRX & STi is made from a cleanable sturdy cotton fiber. A quick and easy boost for power and torque, that has equal rates of engine protection thanks to a special dry film system. This dry film design does not use oil, like most other performance filters, which keeps your MAF from being damaged from excess oil. The high-tech washable design lasts longer than the OEM drop-in air filter while providing much better flow. It can be washed by soaking it in hot water with a bit of dish soap, then air drying it.