Test Mule '08 subaru impreza wrx Engine 2.5-liter EJ25 Relevant Mods Perrin TMIC, SPT 3-inch exhaust, K&N Typhoon Intake Key Features The TMS blow-off valve can be set to full recirculation or dump to atmosphere or a combination of both. Full recirc mode provides silent operation just like the factory BOV and full dump gives maximum noise. Reduces lag and improves throttle response. Direct fit applications for many vehicles. Turbo Fuse works with the blow-off valve to relieve excessive boost pressure when triggered. Desired boost pressure set by user to trigger automatically when boost pressure is in excess of target amount. You can change the TMS Respons BOV to either vent to the atmosphere, reticulate or do both at the same time.You can change the TMS Respons BOV to either vent to the atmosphere, reticulate or do both The TMS (left) doesn't look much different from stock, but it's adjustability allows it to improve response and reduce lag over the stock BOV.The TMS (left) doesn't look much different from stock, but it's adjustability allows it to « | 1 | 2 | View Full Article Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!