Blow off valves / Compressor Bypass Valves





ALL NEW - HKS Super Sequential Blow off valve - version 3



HKS part # 71007-AK001

Sale Price blowoff valve only $199.95

Sale Price blowoff valve with aluminum mounting flange $226.95

Product details:

The all new HKS Super SQV 3 features include a nickel-plated, die-cast metal secondary valve, which is swaged to the primary valve, a stainless steel C-Clip and spring to increase sealing and durability. To assure buyers that they are purchasing an authentic HKS product, the new design incorporates a holographic HKS logo on the back of the valve, as well as additional HKS logos cast onto the body structure.

The Super SQV 3 utilizes the same mounting flanges as all previous generation SSQV's to assure compatibility with all optional HKS SSQV inserts, recirculation fittings and recirculation kits.

This is a dual stage pull type relief valve. Unlike other blow off valves that are push type, the SSQV will not leak under high boost conditions nor under vacuum at idle. Being of a pull type valve structure, the SSQV can not physically leak under any level of boost because boost pressure also keeps the valve closed against its seat. The SSQV is actuated by pressure alterations only, not by the rate of pressure or vacuum in the line, which ensures a quick valve response and complete closure during idle. On typical blow-off valve designs, a large valve is utilized in order to accommodate high boost / high horsepower applications. However, these large valves tend to react slowly and require high activation pressure to open, therefore are not able to activate and prevent compressor surge at light-load conditions. On the other hand, smaller, fast reacting valves do not discharge the airflow capacity required for high horsepower applications and tend to creep open and leak as the boost pressure overpowers the spring on these push type valves. For maximum performance, the HKS SSQV incorporates both a small primary valve for ultra quick activation, along with a larger secondary valve for additional discharge capacity. The SSQV is engineered to initially open the small primary valve at light throttle and load conditions, then sequentially opens the secondary valve for additional relief capacity under high boost and load conditions. The mounting base utilizes a circular mounting flange that provides exception flow and complete secure mounting via a C-clip snap ring and O-ring gasket. The triple-fin discharge port design produces a powerful and unique aggressive blowoff sound along with added visual distinction.

The HKS SSQV is available as a universal unit for custom applications and also by vehicle specific kits for bolt-on applications. Vehicle specific HKS SSQV kits come complete with all needed mounting flanges, brackets, and miscellaneous hardware for a bolt-on installation. For Universal SSQV applications, weld-on flanges are available in steel and aluminum for custom installation.

Purchase them seperately for use with the HKS SSBOV:

60mm aluminum flange - add $27 (for welding it to aluminum piping)

50mm steel flange - add $34(for welding it to steel piping)

65mm steel flange - add $41 (for welding it to steel piping)

* direct bolt on kits are also available for many popular turbo import vehicles at additional cost. please check our main car catalog page or ask sales@turboimport.com if there is one available for you car.

Optional insert piece or recirculation fitting also available at extra cost.


The HKS SSQV silver triple-fin discharge design produces a powerful and unique aggressive blow-off sound along with added visual distinction. Additional triple-fin inserts are available in gold (standard high frequency sound) for visual appeal and in purple metallic (emits a lower frequency sound than both the standard and gold SSBV inserts) for an alternate sound and appearance. SSQV inserts are easily interchangeable within minutes.

HKS LIMITED EDITION Blow-Off Valve - Part #:71004-KK001 special black matte finish NEW FOR 2008 - just released! the special edition black matte blow off valve from HKS. same great features & quality of the newly designed blow off valve line up. now available in this cool looking stealth black finish. limited time offer so dont wait!	Sale Price $201.95
HKS RACING Blow-Off Valve - Part #:71004-AK002 The New HKS Super SQV Racing blow off valve is a pull-type valve for high horsepower applications. Similar in construction and function to the new HKS Super SQV, the Super SQV Racing blow off valve uses a large single stage, aluminum pull-type valve to handle the extreme pressure and airflow discharge volume that is associated with high boost / horsepower applications. The Super SQV Racing blow off valve is engineered to accommodate up to 3.0 bar (43.44psi) of boost and can function accurately on vehicles in the 800 horsepower range. The Super SQV Racing blow off valve utilizes the same circular mounting flange and billet aluminum construction as the SSQV to provide outstanding flow and a perfect seal. The new Super SQV Racing blow off valve now includes 2 recirculation fittings in 19mm and 29mm.	Sale Price $329.95
GReddy LIMITED EDITION Type RZ blow off valve For a limited time you can purchase the great looking GReddy TYPE RZ blow off valve. It features all the same great qualities of the original type RS valve along with a great looking stealthy black grey finish. available for a limted time	Sale Price $187.99
GReddy Type-RS Blowoff valve - (universal) - click image for larger view Type RS (40mm valve) - NEW!!! The GReddy Type RS blow off valve represents the newest evolution of blow off valve technology from the industry leader. With a larger 40mm diameter dual spring valve, the type RS offers more reliable performance for turbo applications pushing extreme boost pressures. This quick response valve can discharge a very high volume of air to avoid compressor surge. note: Universal valves may require adaptor flange for custom applications. Universal steel or aluminum flange available for additional $25. All GReddy blow off valves use the same mounting flange and are interchangeable. - click image for larger view of blow off valve inner workings diagram	SPECIAL Sale Price type RS universal valve $194.99 100% authentic! beware of fakes!
GReddy Type R Blowoff valve - (universal) Type R features a 47mm valve for maximum pressure relief. Optional stiff spring available. note: Universal valves may require adaptor flange for custom applications. Universal steel or aluminum flange available for additional $25. All GReddy blow off valves use the same mounting flange and are interchangeable. note: stiff spring version recommended for cars with over 375 horsepower	SPECIAL Sale Price type R universal valve $229.95 type R STIFF SPRINGl valve $229.95
A'PEXI Twin Chamber Blow off valve - (universal) Part #: 550-A001 A good blow off valve is an absolute necessity for high performance turbo systems. A well-engineered blow off valve prevents turbine damage by quickly relieving excess boost pressure without sacrificing boost response. Conventional blow off valve designs require choosing between flow capacity and boost response - blow off valves with high flow capacity generally have poor boost response, while blow off valves with good boost response are not able to handle high flow capacity. A'PEX engineers have developed a solution to this dilemma by creating the Twin Chamber Blow Off Valve. The Twin Chamber Blow Off Valve is an adjustable, high-response unit for use on a wide range of applications. Rather than relying on the vacuum chamber alone, the Twin Chamber Blow Off Valve harnesses boost pressure in a second chamber to assist in opening the relief valve. This design allows the use of a unique flat-valve design, which provides excellent valve response under both low and high boost conditions without sacrificing flow capacity. Valve reaction is adjusted by tightening or loosening the spring tensioning screw on top of the unit. Blow off sound can be adjusted by turning the red collar at the base of the unit. With its innovative design and adjustment features, the Twin Chamber Blow Off Valve is flexible enough for use on street cars as well as racecars. direct bolt on kits available for (see your car page to buy these): 1995-99 Mitsubishi Eclipse GSX/GST 1991-95 Mitsubishi 3000GT (5 speed only) 1990-96 Nissan 300ZX 1993-98 Toyota Supra 1991-95 Toyota MR2 1993-95 Mazda RX-7 1986-91 Mazda RX-7 NEW APEXI SPEC II BLOW OFF VALVE NOW AVAILABLE!	SPECIAL Sale Price $159.95 limited quantities at this price! SPEC II version $149.95
BLITZ Dual Drive Blow off valve The Blow off valve is essential to all turbocharged vehicles. The purpose of the BLITZ® Blowoff Valve DD is to relieve compressor surge without reducing compressor speed. It controls boost pressure that is built up by the turbo and vents it into the atmosphere when the car is not under load (in between shifts). This prevents pressure from backing up into the compressor housing, causing the turbo impeller blade to rapidly stop or even worse, to spin backwards (compressor surge or backspin). Doing so can be potentially destructive to the turbine wheel and shaft. Repeated stress over time can cause eminent damage to the turbo charger and eventually lead to turbo failure. A blowoff valve is actuated by pressure changes only, ensuring quick valve responses and complete closures at idle. The BLITZ® blowoff valve not only improves performance and response, but also increases the life of the turbocharger. features: DD (Dual Drive) for maximum response (small port for low boost + larger port for high boost) Urethane gasket to ensure complete seal Tension adjustable Holds to 1.2 BAR (18psi) Available hard spring for high boost applications * universal mounting flanges available seperately in either steel or aluminum. direct bolt on kits available for: (see your car page to buy these) 1991-95 Toyota MR2 SW20 1990-95 1991-95 Toyota Celica All Trac Turbo 1993-98 Toyota Supra Turbo 1986-92 Toyota Supra Turbo 1990-01 Nissan Skyline GT-R R32, R33, R34 1989-1993 Nissan 240SX S13 (SR20DET ONLY) 1995-1998 Nissan 240SX S14 (SR20DET ONLY) 1993-95 Mazda RX-7 FD3S 1989-92 Mazda RX-7 FC 2003~ Mitsubishi Lancer EVO 7 & 8 & 9 1995-99 Mitsubishi Eclipse Turbo 1990~ Mitsubishi 3000 GT 2002~ Subaru Impreza WRX GD8	Sale Price universal blow off valve $175.00 steel flange $21.00 aluminum flange $27.00

We also offer TIAL & TURBOSMART valves at great prices so please ask!

and yes these are usually IN STOCK for fast shipping!