Turbocharger Blow-Off & Diverter Valves
- Turbosmart®Kompact™ Dual Port Blow-Off ValveKompact™ Dual Port Blow-Off Valve by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$188.95 - $519.95
- TurboXS®Hybrid Blow Off ValveHybrid Blow Off Valve by TurboXS®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$179.10 - $250.29
- Dorman®OE Solutions™ Turbocharger Recirculation ValveOE Solutions™ Turbocharger Recirculation Valve by Dorman®. This turbocharger diverter valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered for durability and reliable performance.Direct replacement - this turbocharger diverter valve is designed to match the fit and function of the original valve on specified vehiclesRestores functionality - reliable replacement for an original valve that has failed due to a cracked diaphragm$75.26
- Turbosmart®Kompact EM™ Series Dual Por Blow-Off ValveKompact EM™ Series Dual Por Blow-Off Valve by Turbosmart®. The Multiple Award-winning Kompact EM Series of Upgraded Blow Off Valves are the world’s first truly plug and play Upgrade solution for your factory diverter valve. Unplug...You can count on unmatched performance & reliability as a direct replacement for your factory diverter valve.The Kompact EM Valves overcome the common faults associated with plastic factory valves through Boost-Balance Valve Design$244.95 - $274.95
- Turbosmart®EM Series Kompact BOV Plumb Back VR2EM Series Kompact BOV Plumb Back VR2 by Turbosmart®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Designed to help you get the most out of your vehiclePerfect for use in high-performance environments$244.95
- Turbosmart®Supersonic Blow-Off ValveSupersonic Blow-Off Valve by Turbosmart®. Designed to ensure the finest turbo response and greater sensitivity when managing boost pressures, this internal wastegate has high heat handing capabilities, exceptional diaphragm strength,...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$224.95 - $364.95
- Standard®TechSmart™ Turbocharger Bypass ValveTechSmart™ Turbocharger Bypass Valve by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$46.97 - $54.03
- ACDelco®Genuine GM Parts™ Turbocharger Bypass ValveGenuine GM Parts™ Turbocharger Bypass Valve by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$14.32 - $122.50
- ACDelco®Genuine GM Parts™ Turbocharger Bypass Valve SolenoidGenuine GM Parts™ Turbocharger Bypass Valve Solenoid by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$39.55 - $123.02
- Dorman®OE Solutions™ Turbocharger Diverter ValveOE Solutions™ Turbocharger Diverter Valve by Dorman®. Turbocharger Diverter Valves are an essential replacement item for proper operation of the vehicle's Turbocharger System. Dorman's Turbocharger Diverter Valve is designed to the...Direct replacement for a proper fit every timeValve coated with Zinc Chromate for extra protection against corrosion$49.29 - $52.79
- Turbosmart®Blow-Off ValveBlow-Off Valve by Turbosmart®. Designed to provide greater performance through faster turbo spool-up from idle and reduced turbo lag between gears, it's tested and proven under the most demanding racing conditions to ensure the highest...Designed for use on large-capacity turbocharger systems and high-horsepower enginesBrings maximum possible performance through faster turbo spool-up from idle and reduced turbo lag between gears$177.95 - $354.95
- Turbosmart®Dual Port Smart Port Blow-Off Valve KitDual Port Smart Port Blow-Off Valve Kit by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$694.95
- Turbosmart®EM Series Kompact Dual Port Blow-Off ValveEM Series Kompact Dual Port Blow-Off Valve by Turbosmart®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Designed to help you get the most out of your vehiclePerfect for use in high-performance environments$274.95
- Turbosmart®Kompact BOV Plumb Back SystemKompact BOV Plumb Back System by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$177.95 - $181.95
- Turbosmart®Kompact BOV Shortie Plumb Back SystemKompact BOV Shortie Plumb Back System by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$197.95
- Turbosmart®Kompact™ Shortie Bypass ValveKompact™ Shortie Bypass Valve by Turbosmart®. Designed utilizing the latest technology, this product by Turbosmart features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$177.95
- Turbosmart®Smart Port Dual Port BOVSmart Port Dual Port BOV by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$354.95
- Turbosmart®Type 5 Dual Port Blow-Off ValveType 5 Dual Port Blow-Off Valve by Turbosmart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$354.95
- Turbosmart®Vee Port Pro™ Blue Blow-Off ValveVee Port Pro™ Blue Blow-Off Valve by Turbosmart®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...High quality at an affordable priceExpertly made from premium materials$214.95 - $219.95
- Genuine®Turbocharger Bypass ValveTurbocharger Bypass Valve by Genuine®. If your engine parts is in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$198.68 - $470.12
- Genuine®Turbocharger Cut-Off ValveTurbocharger Cut-Off Valve by Genuine®. If your engine parts is in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our...Made with precision and quality in mindDesigned to meet your specific needs$80.24 - $665.25
- Genuine®Turbocharger Cut-Off Valve HoseTurbocharger Cut-Off Valve Hose by Genuine®. If your engine parts is in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On...Made with precision and quality in mindDesigned to meet your specific needs$30.32 - $178.82
- Standard®Intermotor™ Turbocharger Bypass ValveIntermotor™ Turbocharger Bypass Valve by Standard®. For over 100 years, professional technicians have trusted Standard® to replace the failed OE part. Standard® manufacturers the highest-quality, best-performing parts for all...Direct-fit OE replacement ensures proper fit, form, and functionExtensively tested to OE specifications to ensure superior performance and long service life$62.65 - $216.59
- Standard®Turbocharger Bypass ValveTurbocharger Bypass Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$49.10 - $95.16
- Pierburg®Turbocharger Bypass ValveTurbocharger Bypass Valve by Pierburg®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$35.54 - $217.55
- Pierburg®Turbocharger Cut-Off ValveTurbocharger Cut-Off Valve by Pierburg®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$47.76 - $96.35
- Pierburg®Turbocharger Diverter ValveTurbocharger Diverter Valve by Pierburg®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$78.65 - $164.63
- TurboXS®Type H34 Racing Bypass ValveType H34 Racing Bypass Valve by TurboXS®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$215.10 - $224.10
- Kayser®Turbocharger Bypass ValveTurbocharger Bypass Valve by Kayser®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need accessory drive belt repairs,...High-grade design and construction built to last for yearsPerfect for use in high-speed environments$67.12 - $100.31
- PERRIN Performance®Recirculating Blow Off ValveRecirculating Blow Off Valve by PERRIN Performance®. Adjustable relief pressure and flow control makes fine-tuning on the fly simple and quick. With large 1.225" inlets and outlets, the PERRIN Blow Off Valve is sized perfectly to...Sized to relieve any amount of boost pressureMaintains air within the boost system without reducing turbo response$225.25
Blow-off and diverter valves have always been popular upgrades for a turbo engine. However, not all car enthusiasts know why they are so important, and what the difference between a blow-off and diverter (also called bypass or recirculating) valve is. So let’s make things clear. Your turbocharger compresses air and forces it to the engine. This allows more air to enter the cylinders, which results in stronger combustion and increased horsepower. The high-pressure compressed air enters the engine when the throttle plate is open. However, when the throttle plate closes, this air has to be released; otherwise, the pressure in turbo piping will increase dramatically causing the air to move in the opposite direction. This can compromise vehicle performance and damage your turbocharger, engine and other vital vehicle parts.
Blow-off and diverter valves prevent this from happening by letting the air escape from the tubing. Once the throttle closes, the manifold pressure instantly drops below the atmospheric pressure. The valves sense this change and open to release the air. Blow-off and diverter valves do the same job but differ in the way they do it. Diverter valves recirculate the air back into the intake while blow-off valves vent it to the atmosphere. Since diverter (bypass) valves are better at keeping the pressure consistent, they come standard on most modern turbocharged vehicles. Blow-off valves create an attention-grabbing chuffing sound and are typically an aftermarket modification. On our website, you’ll find an extensive variety of both blow-off and bypass valves that are made using high-strength materials to offer uncompromising performance and reliability.
When choosing between a blow-off or a diverter valve, don’t forget to consider several important factors. First of all, remember that it’s not recommended to install a blow-off valve if you have a factory ECU and (MAF) sensor. The sensor calculates the amount of air that enters the engine and sends these data to the ECU so the ECU can determine the amount of fuel needed for a balanced air-fuel mixture. The blow-off valve vents the air after it has been calculated by the MAF sensor. But the control unit injects excess fuel taking into account the readings from the MAF sensor. This will eventually result in a rich mixture. To get a louder sound without compromising performance, choose a dual port blow-off valve that releases half of the air to the atmosphere while recirculating the other half back to the air intake. However, if you use an aftermarket ECU, you can upgrade to whatever valve you want.
Factory diverter (bypass) valves cope with the pressure pretty well, so there’s no obvious reason to upgrade them when you have a factory or low-tuned setup. However, they tend to leak under boost levels that are much higher than factory ones (usually 25 psi or more). In this case, you can opt for a high-flow bypass valve that can flow a larger amount of air without any airflow issues. But if you start making mods that are beyond the capabilities of the diverter valve, for instance running an 800-horsepower engine, blow-off valves are the only solution. So as you can see, your choice will depend on your performance goals and the type of setup you’re running.