Cap, piston, and flange are CNC machined from 6061 billet aluminum materials
Blow off valve body is CNC machined from a single block of aluminum
Anodized black finish
Large 1.225" inlets and outlets and is sized perfectly to relieve any amount of boost pressure without fear of compressor surge
Adjustable relief pressure with adjustable spring tension which allows for an adjustment when the blow-off valve vents
A looser setting will make it act smooth and more like stock while a harder setting will cause it to vent later and with significantly increased boost levels
Adjustable flow control allows you to control the volume of air released when the blow-off valve vents
Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts
Recirculating the air recirculates the air back to the intake track to maintain proper air-fuel ratio and driveability between shifts
Low maintenance and is quick and easy to disassemble
Direct fit and pre-set adjustment
Perrin Subaru 02-07 WRX / 04-15 STI Black Blow Off Valve kit Recirculation Only
Regular price $275.00
Shipping calculated at checkout.
Part #: perPSP-TAC-600BK
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