ETS Turbo Kit Air Filter - Replacement Filter for ETS Turbo Kits ACT-HDSS The JE FSR pistons receive

The JE FSR pistons receive electroless nickel plating on the tops and ring area -- a hard coating that improves detonation resistance and heat reflection

the transmission is already removed

Complete Package Benefits

The BSR20XXZ is most effective when matched with a stiff front bar (BSF19XZ or larger)

RallySport Direct proudly carries a great selection of quality aftermarket products brought to you by PERRIN Performance

ETS Turbo Kit Air Filter - Replacement Filter for ETS Turbo Kits ACT-HDSS The JE FSR pistons receiveSelect your intake configuration above from either Speed Density or Stock MAF to select the correct replacement filter for your 04 21 STI Turbo Kit Intake.