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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!
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Sale Price
$199.95
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HKS Super Sequential Blow-Off Valve (SSQV) - Part #:
71004-AK001
JUST RELEASED - NEW
VERSION FOR 2007!
Highly recommended for great quality and performance!
The HKS Super Sequential Blowoff Valve (SSQV) 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 SSQV is constructed of polished billet
aluminum, which ensures long-term durability and visual appeal.
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.
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Limited Time
Offer!
Sale Price
blowoff
valve only
$185.95
blowoff
valve with
aluminum
flange
$212.95
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HKS RACING Blow-Off Valve - Part #:1421-RA001
The HKS Racing Blow Off Valve Type II is a pull-type blow off
valve for high horsepower applications. Similar in construction
and function to the HKS SSQV, the Racing Blow Off Valve Type II
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 Type II 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 Racing
Blow Off Valve Type II utilizes the same circular mounting flange
and billet aluminum construction as the SSQV to provide outstanding
flow and a perfect seal.
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Sale Price
$344.95
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GReddy Type-S Blow off valve -
(universal)
Part #: 11501650
37mm valve |
GReddy Blow Off Valves are easily adjustable to prevent
both premature boost leakage and compressor surge. Each is
made of durable cast and billet aluminum frame and the valve
to diaphragm ratio provides performance that cheap piston
types cannot offer. The spring stiffness adjustment screw
and the two different sizes give the GReddy user the option
to match vehicles with mild upgrades to heavily tuned engines.
Also available in easy to install kit form for many turbocharged
vehicles. |
direct bolt on kits available for:
1987-92 MAZDA RX-7 TURBO
1993-95 MAZDA RX-7 T/T
1995-99 MITSUBISHI ECLIPSE GST / GSX
2002-04 SUBARU WRX
1991-95 TOYOTA MR2 TURBO
1987-92 TOYOTA SUPRA TURBO
1993-98 TOYTOA SUPRA TURB
* prices vary for direct bolt on kits. please e-mail sales@turboimport.com
for price quote.
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no longer
available
replaced
by new
type RS
valve
below
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GReddy Type-RS Blowoff valve -
(universal)

- click image for larger view
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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.
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- click image for larger view of blow off valve inner workings
diagram |
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SPECIAL
Sale Price
type RS
universal
valve
$204.95
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GReddy Type R Blowoff valve -
(universal)

Type R
features a 47mm valve for maximum pressure relief. Optional
stiff spring available. |
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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
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SPECIAL
Sale Price
type R
universal
valve
$229.95
type R
STIFF
SPRINGl
valve
$229.95
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A'PEXI Twin Chamber Blow off valve
- (universal)
Part #: 550-A001
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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!
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SPECIAL
Sale Price
$159.95
limited
quantities
at this price!
SPEC II
version
$149.95
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BLITZ Dual Drive Blow off valve

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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).
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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
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Sale Price
universal
blow off
valve
$175.00
steel flange
$21.00
aluminum
flange
$27.00
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