Upgrade your BMW's performance with the HKS RACING SQV Blow-Off Valve, designed specifically for high-power and large displacement engines. This innovative 3-chamber valve features a large 51mm opening, ensuring reliable operation under various boost levels without the need for constant adjustments.
This blow-off valve has undergone rigorous durability testing, exceeding 1 million operations to minimize the chances of valve sticking, ensuring long-lasting performance. It’s the ideal choice for enthusiasts looking to improve their vehicle's responsiveness and reliability.
Many users have reported noticeable improvements in throttle response and overall engine performance after installing the HKS RACING SQV. Its adjustable preload feature allows for fine-tuning, ensuring that it meets the unique demands of each vehicle setup.
Other Part Numbers:
HKS #hks71008-AK004
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2006-2012 BMW 335i |
335i | 2006-2012 |
|
2008-2010 BMW 535i |
535i | 2008-2010 |
|
2009-2016 BMW Z4 |
Z4 | 2009-2016 |

Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.
HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.