PERRIN Recirculating Blow Off Valve BOV Kit

The PERRIN Blow Off Valve cap, piston & flange are all CNC machined from 6061 Billet Aluminum. The PERRIN Blow Off Valve body is CNC machined from a single block of aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts.

The PERRIN Blow Off Valve cap features 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. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining air within the boost system without reducing turbo response. 

With large 1.225" inlets and outlets, the PERRIN Blow Off Valve is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Don’t be fooled by giant oversized blow off valves, these inlet and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost. 

The unique design 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 without causing compressor surge. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable blow off valve.

It is vital that a blow off valve for your WRX/STI recirculates the air back to the intake track to maintain proper air-fuel ratio and driveability between shifts. While this can be set up as a vent-to-atmosphere style blow off valve, we only recommend that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor).  

Included with every PERRIN Blow Off Valve are the necessary components to make this a direct bolt-on for your WRX/STI. Each blow off valve is pre-set out of the box to work perfectly with every application, so no adjustment required.

Features

• 100% Genuine Perrin products or double your money back
• High Flow with Adjustable Flow Control and Adjustable Relief Pressure
• CNC machined from single block of 6061 Billet Aluminum

• Direct Fit with Pre-Set adjustment

 

This includes

• 1 x Perrin recirculating blow off valve with bolt-on flange
• 1 x 1/4" Fuel Hose
• 1 x 1/2" Fuel Hose
• Necessary Hardware, Instructions and Stickers

Shipping

• We ship within 1 business day (or same day if payment is cleared before 12pm pst)
• Free shipping to the 48 lower states
• We do ship to AK, GU, HI, MP, PR, PO Boxes and APO/FPO boxes (Please contact us for rates)
• We do ship to international addresses, please email for shipping quote
• International Buyers – Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying

Payment

• We accept payment by PayPal and credit card.
• Payment needs to be received within 24 hours of purchase or the transaction may be cancelled.

Customer support

• Our customer support is available M-F 10-5.
• Please contact us at using "ask seller a question" above