GReddy (11501665) Blow-Off Valve

If you’re looking for a blow off valve that really blows well this is for you. Every time you want to hear that glorious pssh sound of whooshing air coming out of your turbo car you just hit the gas Vroom and quickly release to hear the Pssh sound! After a few weeks the spring softens a little and it sounds great! I wish I could make this my ringtone Pssh!

Replaced Vortek bypass valve on V3 supercharger installation on a 2005 350Z, where the Vortek unit had nasty whistling and howling resonance issues. The GReddy is quiet and effective, the slight extra boost at low load due to the two stage operation doesn't cause any noticeable issue. Over 50K miles on it now with no trouble.

Prior to buying this Greddy blow off valve, I had a cheap ebay one and the valve wasn't opening like it should... I tried loosening it and still not enough air was vented out. My turbo was flutterring like crazy but after installing this Greddy BOV, the air vented out without stressing the turbo. Awesome sound it makes!Listen people, life is too short to buy cheap and low quality stuff. Best to invest in good quality parts because cutting corners can sometimes come back to bite you!

Can't beat a Greedy, installed on a Volvo 850 Turbo 2.3. Works and Sounds Great!!

Box arrived about a week late after a shipping error. When I opened the package all of the hardware was in a ziploc bag, as well as the B.O.V. itself. It feels cheap, and I'm concerned that what should have been the genuine article may not be.

Exactly what you expect from a Greedy product, PERFECT. Dont go for a cheap knock off remember you get what you pay for.

Been using since November 2017. Works great! Sounds awesome!

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よくある社外ブローオフバルブでのアイドリング中のエンスト。当方も別の某メーカーのものを最初に使っていましたが、やはりたまにエンストしていました。エンスト防止のFV機構ということでこちらに変えたところ、以降エンストは一度も起きておりません。