Collection: Blow Off Valves
A blow off valve, also known as a bypass valve or diverter valve, is an important component of a turbocharged or supercharged engine's intake system. Its primary function is to release excess boost pressure that builds up when the throttle is closed, such as during gear changes or deceleration. When the throttle closes, the turbocharger or supercharger continues to spin, compressing air & creating pressure. Without a blow off valve, this excess pressure could potentially damage the turbocharger or cause other issues. The blow off valve operates by diverting the compressed air back into the intake system, downstream of the turbocharger or supercharger, rather than sending it back through the compressor. This action creates the characteristic sound often associated with blow off valves. Blow off valves come in various designs, including atmospheric (vented to the atmosphere) & recirculating (redirecting the air back into the intake system). The choice depends on factors such as performance goals, emissions regulations, & personal preference. Proper selection & installation of a blow off valve are crucial to maintain the reliability & performance of the engine, as well as to achieve the desired sound & response characteristics.
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HKS Gasket Blow-Off Valve G17671-K00031-00
Vendor:Regular price $5.00 USDRegular priceUnit price / per$5.00 USDSale price $5.00 USD -
HKS Bellofram(STD Blow-off Valve) 12002-AK040
Vendor:Regular price $50.00 USDRegular priceUnit price / per$50.00 USDSale price $50.00 USD -
HKS FLANGE BLOW OFF VALVE 12002-AK026
Vendor:Regular price $40.00 USDRegular priceUnit price / per$40.00 USDSale price $40.00 USD -
HKS STD BLOW OFF VALVE ASSY 12002-AK019
Vendor:Regular price $140.00 USDRegular priceUnit price / per$140.00 USDSale price $140.00 USD -
GrimmSpeed Intercooler BPV/BOV Gasket - Subaru GRM020023
Vendor:Regular price $13.00 USDRegular priceUnit price / per$13.00 USDSale price $13.00 USD -
TURBOSMART USA BOV 32mm Hose Blanking Plug TS-0205-2015
Vendor:Regular price $10.95 USDRegular priceUnit price / per$12.05 USDSale price $10.95 USDSale -
VIBRANT PERFORMANCE Weld On Flange Kit for T ial Style Blow Off Valve 1478
Vendor:Regular price $32.99 USDRegular priceUnit price / per$36.29 USDSale price $32.99 USDSale -
VIBRANT PERFORMANCE Weld On Flange Kit for T ial Style Blow Off Valve 1477
Vendor:Regular price $32.99 USDRegular priceUnit price / per$36.29 USDSale price $32.99 USDSale -
VIBRANT PERFORMANCE Weld On Flange Kit for G reddy BOV Steel Weld 1454
Vendor:Regular price $32.99 USDRegular priceUnit price / per$36.29 USDSale price $32.99 USDSale -
VIBRANT PERFORMANCE Weld On Flange Kit for G reddy BOV Alum Weld 1453
Vendor:Regular price $32.99 USDRegular priceUnit price / per$36.29 USDSale price $32.99 USDSale -
VIBRANT PERFORMANCE Weld On Flange Kit for H KS SSQ BOV Alum Weld 1451
Vendor:Regular price $32.99 USDRegular priceUnit price / per$36.29 USDSale price $32.99 USDSale -
TURBOSMART USA Weld Flange - Alloy Steel BOV Power Port TS-0207-3001
Vendor:Regular price $31.95 USDRegular priceUnit price / per$35.15 USDSale price $31.95 USDSale -
TURBOSMART USA BOV Vee Port Pro Valve Black TS-0205-1131
Vendor:Regular price $204.95 USDRegular priceUnit price / per$225.45 USDSale price $204.95 USDSale -
TURBOSMART USA BOV Vee Port Pro Valve Blue TS-0205-1130
Vendor:Regular price $204.95 USDRegular priceUnit price / per$225.45 USDSale price $204.95 USDSale -
TURBOSMART USA Gen-V Race Port BOV Black TS-0204-1132
Vendor:Regular price $304.95 USDRegular priceUnit price / per$335.45 USDSale price $304.95 USDSale -
TURBOSMART USA Gen-V BOV Race Port - Black Anodized 50mm TS-0204-1136
Vendor:Regular price $314.95 USDRegular priceUnit price / per$346.45 USDSale price $314.95 USDSale -
TURBOSMART USA BOV SmartPort Supersonic Ford F150 13-UP 2.7/3.5L TS-0215-1371
Vendor:Regular price $364.95 USDRegular priceUnit price / per$401.45 USDSale price $364.95 USDSale -
TURBOSMART USA BOV RacePort EM GenV Sle eper TS-0224-1135
Vendor:Regular price $379.95 USDRegular priceUnit price / per$417.95 USDSale price $379.95 USDSale -
TURBOSMART USA Gen-V BOV ProPort - 54mm Supercharger Black TS-0208-1132
Vendor:Regular price $399.95 USDRegular priceUnit price / per$439.95 USDSale price $399.95 USDSale -
TURBOSMART USA BOV Power Port - Black TS-0207-1002
Vendor:Regular price $469.95 USDRegular priceUnit price / per$516.95 USDSale price $469.95 USDSale -
NITROUS OXIDE SYSTEMS Safety Blow-Off Disc - Generation II 16168NOS
Vendor:Regular price $36.17 USDRegular priceUnit price / per$39.79 USDSale price $36.17 USDSale -
NITROUS OXIDE SYSTEMS Safety Blow-Off Cap w/Diffuser 16169NOS
Vendor:Regular price $62.05 USDRegular priceUnit price / per$68.26 USDSale price $62.05 USDSale -
NITROUS EXPRESS Blow-Off Safety Disc 3000psi 11712L
Vendor:Regular price $7.71 USDRegular priceUnit price / per$8.48 USDSale price $7.71 USDSale -
NITROUS EXPRESS NHRA Safety Blow-Off Cap 11709
Vendor:Regular price $35.78 USDRegular priceUnit price / per$39.36 USDSale price $35.78 USDSale