Adjustable Recirculating Blow Off Valve For Perrin 02-07 Subaru WRX + 04-18 STI

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  • $60.68
  • Regular price $136.53
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WRX 2002-2018+

STi 2004-2018+

Forester 2005-2007


EPMAN is proud to introduce a new generation of "Push Type Floating Valve System Blow Off Valves". The Floating Valve design produces quicker valve response, increased valve travel, and improved resistance to premature valve lift and boost leak.

The floating valve design incorporates a revised adjustable spring system and diaphragm ventilation compared to competitors, while maintaining the advantages of other model's push valve structure and heat resistant silicone diaphragm and valve ratio.

This allows the spring and diaphragm to control the valve and boost better. By placing the spring over the valve, it makes the need for spring pre-load less dependent on idle and light boost situations and more on keeping the valve closed under boost.

The result is our best performing iPR Blow-off Valve yet! Another improvement includes an adjustable turning top hat to adjust the hose fitting location without complete dis-assembly.


1 x EPMAN recirculating blow off valve with bolt-on flange

1 x 1/4" Fuel Hose

1 x 1/2" Fuel Hose

Product Disclaimer: This product is not designed to meet emissions/noise standards and is not for street or highway use. This product is not certified and may not be legal for use on emissions-controlled vehicles in any country/jurisdiction. Any other use, including recreational off-road, may violate local, state, and federal laws. Dynamic Performance Tuning does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the customer's responsibility. Dynamic Performance Tuning will not ship CARB restricted products into CARB restricted areas under any circumstances. ***OFF-ROAD USE ONLY***