HKS original 3-chamber structure ensures the stable operation of blow-off valve regardless of the amount of pressure. Large 51mm valve performs great with high power and large displacement engines. Adjustable pre-load allows a wide range of application. Typical blow off valves require spring load settings for each vehicle specification. If the spring load setting is too low, the boost pressure may be relieved under high boost, and the desired boost setting may not be reached. If the spring load setting is too strong, the valve may not open at low boost. HKS RACING SQV utilizes a reliefless type; therefore, it delivers stable operation at all boost levels. Durability tests of over 1 million operations minimizes the chances of valve stick and achieves high durability.

Features:

51mm Large Valve for High Power Engine
Reliefless Valve for Stable Operation at boost levels
Adjustable Preload Setting (Adjust Air Release Timing)

Fitment:

BMW 135i | 1M | 335i | 335is 06-12
BMW 535i 08-10
Z4 35i 09-18

Note(s)

Pictures used for marketing purposes only. Actual product may vary.

Other Part Numbers:
HKS #hks71008-AK004

Proposition 65

$/!\ warning$ 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.

Warranty for Exhaust System

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.