A blowoff valve is connected by a vacuum hose to the intake manifold after the throttle plate. When the throttle is closed, the relative manifold pressure drops below atmospheric pressure and the resulting pressure differential operates the blowoff valve's piston. The excess pressure from the turbocharger is then vented into the atmosphere or recirculated into the intake upstream of the compressor inlet.


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50MM ALUMINUM BLACK TURBO INTERCOOLER BOV BLOW OFF VALVE 35 PSI BOOST

Item No. 4256

50 mm aluminum turbo intercooler blow off valve Hard-Anodized Valve for Increased Air Flow50mm Flange Diameter; Holds Up to 35PSI Boost PressureCNC Machined Billet Aluminum Body Powder-Coated Anodized and Polished FinishColor:BLACKDraws In Surrounding Air and Releases Aggressive Unique Disc..

$50.00
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50MM ALUMINUM BLUE TURBO INTERCOOLER BOV BLOW OFF VALVE 35 PSI BOOST

Item No. 4255

50 mm aluminum turbo intercooler blow off valve Hard-Anodized Valve for Increased Air Flow50mm Flange Diameter; Holds Up to 35PSI Boost PressureCNC Machined Billet Aluminum Body Powder-Coated Anodized and Polished FinishColor:BLUEDraws In Surrounding Air and Releases Aggressive Unique Disch..

$50.00
$50.00
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50MM ALUMINUM PURPLE TURBO INTERCOOLER BOV BLOW OFF VALVE 35 PSI BOOST

Item No. 4257

50 mm aluminum turbo intercooler blow off valve Hard-Anodized Valve for Increased Air Flow50mm Flange Diameter; Holds Up to 35PSI Boost PressureCNC Machined Billet Aluminum Body Powder-Coated Anodized and Polished FinishColor:PURPLE Draws In Surrounding Air and Releases Aggressive Unique Di..

$50.00
$50.00
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50MM ALUMINUM RED TURBO INTERCOOLER BOV BLOW OFF VALVE 35 PSI BOOST

Item No. 4258

50 mm aluminum turbo intercooler blow off valve Hard-Anodized Valve for Increased Air Flow50mm Flange Diameter; Holds Up to 35PSI Boost PressureCNC Machined Billet Aluminum Body Powder-Coated Anodized and Polished FinishColor:REDDraws In Surrounding Air and Releases Aggressive Unique Discha..

$50.00
$50.00
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NEW Race Port (50mm Piston) UNIVERSAL (BLUE) BOV BLOW OFF VALVE

Item No. 4251

*Features:** Large 50mm Piston for massive flow* Billet aluminium construction* Silicone nomex diaphragm* Quick release V-Band clamp* Collar design allows for small size and light weight, It is 46% lighter and 25% smaller than old Race Port* Choice of Blue or Black colours* 17 inHg spring fitted* Su..

$100.00
$100.00
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Race Port (50mm Piston) Universal (BLUE) BOV BLOW OFF VALVE V-Band

Item No. 4250

Features:** Large 50mm Piston for massive flow* Billet aluminium construction* Silicone nomex diaphragm* Quick release V-Band clamp* Collar design allows for small size and light weight, It is 46% lighter and 25% smaller than old Race Port* Choice of Blue or Black colours* 17 inHg spring fitted* Sup..

$100.00
$100.00
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SPEEDRACINGTURBO 2PCS Dump Tube Pipe+ Elbow Adaptor 35/38mm Wastegate Actuator Turbo Stainless

Item No. 4349

SPEEDRACINGTURBO 2PCS Dump Tube Pipe+ Elbow Adaptor 35/38mm Wastegate Actuator Turbo StainlessMade of High Quality T-304 Stainless Steel with Computerized Mandrel-Bendsi.e. Maximizing Smoothest Exhaust AirflowRedirects Hot Exhaust Gases from the Wastegate towards the Bottom of the Engine, for easier..

$35.00
$35.00
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SPEEDRACINGTURBO EGR BMW Race Pipe Recycle Valve Kit For 330D 530D 730D E46 E39 M57 M47 TURBO

Item No. 4340

SPEEDRACINGTURBO EGR BMW Race Pipe Recycle Valve Kit For 330D 530D 730D E46 E39 M57 M47 TURBOIntake pipe dimensions:Diameter 50mmLong: 90mmTotal length w/base:95mmMaterial: aluminum alloysFIT:Engine Code M47,M47N,M47N2,M57,M67,M47R3 Series-E46BMW 318d 2001-2005BMW 318td 2002-2004BMW 320d 1997-2005BM..

$30.00
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SPEEDRACINGTURBO EGR Delete Kit & Pipe Fit for Beetle Golf Jetta MK4 ALH GLX GL 50MM

Item No. 4305

SPEEDRACINGTURBO EGR Delete Kit & Pipe Fit for Beetle Golf Jetta MK4 ALH GLX GL 50MMSize: 11.2x4.5x5cm (4.4x1.8x2inch)Material: Aluminum AlloyColor:SilverFit:Fit for  Beetle 1.9L 1998-2003 (Engine Code ALH Only)Fit for Jetta 1999-2004 (Engine Code ALH Only)Fit for  Golf 1999-..

$25.00
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SPEEDRACINGTURBO New 90 Degree Elbow Stainless Steel Adapter adaptor 2.5" V band Kit to T3 Flange

Item No. 4348

SPEEDRACINGTURBO New 90 Degree Elbow Stainless Steel Adapter adaptor 2.5" V band Kit to T3 FlangeAll Necessary Hardware, Bolts, and Gasket Included.New 90 Degree Elbow Stainless Steel Adapter adaptor 2.5" V band to T3  Flange Conversio Turbo Adaptor 2pcs Vband kitsInclude: 2pcs adaptor 2.5inch ..

$100.00
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Universal Blow Off Valve bov Type FV 40mm New Floating Valve black

Item No. 4249

Adjustable floating valve, revised funnel outlet Floating Valve design with opposing springs, allows for improved control, response and idle.new top hat design allow for rotating of the vacuum nipple without disassembly of the unit.100-420hp rangeBOV gasket, nuts & boltsCompatible with stan..

$60.00
$60.00
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