Turbocharger Blow-Off & Diverter Valves
- 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
- Vemo®Charger Diverter ValveCharger Diverter Valve by Vemo®. Grade: OE. Vemo products are made by high-quality materials and undergo strict quality tests. They are, thereby, the perfect alternative to the original part.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$115.13 - $257.22
- Torque Solution®Blow-Off Valve Sound PlateBlow-Off Valve Sound Plate by Torque Solution®. The Torque Solution blow off valve adapter was designed to give you that atmospheric blow off sound your looking for on your turbocharged VW. A simple bolt on modification that is...Great sound6061 Billet Aluminum$63.30 - $92.81
- Turbosmart®Blow-Off Valve Block-Off CapBlow-Off Valve Block-Off Cap by Turbosmart®. Specially designed for the Borg Warner EFR, KKK and Ecoboost Turbocharger, this product eliminates the originally fitted diverter valve required for fitment of the external BOV (Blow-off...Designed specifically for the Borg Warner EFR, KKK, and Ecoboost TurbochargerEliminates the originally fitted diverter valve for fitment of external BOV$34.95 - $37.95
- Turbosmart®Blow-Off Valve Flange Adapter KitBlow-Off Valve Flange Adapter Kit by Turbosmart®. This kit includes everything required to allow the fitment of a Turbosmart Universal Plumback, Dual Port and Supersonic BOV via quick change V-Band. The products included are made of...Designed to allow the fitment of Turbosmart Universal Plumback, Dual Port and Supersonic BOVMade of high durable materials$87.95
- Rotomaster®Turbocharger Exhaust AdapterTurbocharger Exhaust Adapter by Rotomaster®. Rotomaster Exhaust Adapters are a great upgrade to the factory-installed adapters that come equipped with an exhaust back pressure valve (EBPV). The stock valves have a tendency to stick from...Direct O.E. replacementEliminates problematic exhaust back pressure valve$50.49 - $127.17
- Torque Solution®Blow Off Sound PlateBlow Off Sound Plate by Torque Solution®. Billet BOV Sound Plate allows you to vent your stock blow off valve to atmosphere to create that nice blow off valve sound. There is no need to buy expensive upgraded blow off valves for the...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$72.19 - $73.86
- Torque Solution®Blow Off Valve AdapterBlow Off Valve Adapter by Torque Solution®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Great sound6061 Billet Aluminum$31.65 - $100.23
- Torque Solution®Blow Off Valve Block Off PlateBlow Off Valve Block Off Plate by Torque Solution®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and deliver...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$15.82
- Torque Solution®Greddy Blow Off Valve AdapterGreddy Blow Off Valve Adapter by Torque Solution®. Billet Greddy Blow off Valve Adapter allows you to direct fit your blow off valve to your vehicle without any welding or modifications at all. Perfect for your vehicle, it is...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$40.09 - $52.74
- Torque Solution®HKS™ Blow-Off Valve AdapterHKS™ Blow-Off Valve Adapter by Torque Solution®. Billet HKS Blow Off Valve Adapter allows you to mount your HKS BOV to aftermarket piping with an OEM BOV flange on it. Perfect for your vehicle. It is manufactured to meet or exceed...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$36.92 - $168.82
- Torque Solution®HKS™ Blow-Off Valve FlangeHKS™ Blow-Off Valve Flange by Torque Solution®. 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$40.09
- Torque Solution®Tial Blow Off Valve AdapterTial Blow Off Valve Adapter by Torque Solution®. Designed utilizing the latest technology, this product by Torque Solution features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...CNC machined 6061-T6 Billet AluminumLimited Lifetime Warranty$40.09 - $57.50
- Turbosmart®Kompact EM™ Dual Port Blow-Off ValveKompact EM™ Dual Port Blow-Off Valve by Turbosmart®. The award-winning Kompact EM series Blow-Off Valves, are the world’s first truly plug and play Blow-Off Valves. Simply unplug and unbolt your OEM Blow-Off Valve, and install ours...Patent pending integrated pressure controlTrue plug and play upgrade$274.95
- Turbosmart®Kompact EM™ Plumb Back Blow-Off ValveKompact EM™ Plumb Back Blow-Off Valve by Turbosmart®. The award-winning Kompact EM series Blow-Off Valves, are the world’s first truly plug and play Blow-Off Valves. Simply unplug and unbolt your OEM Blow-Off Valve, and install ours...Patent pending integrated pressure controlTrue plug and play upgrade$244.95
- Turbosmart®Kompact™ Plumb Back Blow-Off ValveKompact™ Plumb Back Blow-Off Valve by Turbosmart®. This product is made of high-quality materials to serve you for years to come. Designed usig state-of-the-art technology and with customers in mind. It will meet your needs and...Patent pending integrated pressure controlTrue plug and play upgrade$181.95 - $469.95
- Turbosmart®Kompact™ Supersonic™ Blow-Off ValveKompact™ Supersonic™ Blow-Off Valve by Turbosmart®. Preferred venting solution for serious street tuners and racers. Designed as a direct bolt-on replacement for the factory part, the BOV is easy to install and requires no special...Patent pending integrated pressure controlTrue plug and play upgrade$197.95 - $224.95
- Dorman®OE Solutions™ Standard Grade Type Turbocharger Recirculation Valve (911-240)OE Solutions™ Standard Grade Type Turbocharger Recirculation Valve (911-240) 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...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$74.69
- ACDelco®GM Genuine Parts™ Multi-Purpose Solenoid (55573259)GM Genuine Parts™ Multi-Purpose Solenoid (55573259) by ACDelco®. GM Genuine Parts Multi Purpose Solenoids are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$27.22
- Turbosmart®Kompact Dual Port Blow-Off Valve (TS-0203-1059)Kompact Dual Port 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$229.95
- Turbosmart®Kompact Dual Port Blow-Off Valve (TS-0203-1037)Kompact Dual Port 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$274.95
- Turbosmart®Kompact Dual Port Blow-Off Valve (TS-0203-1025)Kompact Dual Port 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$404.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1065)Kompact Dual Port Blow-Off Valve Kit (TS-0203-1065) by Turbosmart®. Designed to ensure the finest turbo response and greater sensitivity when managing boost pressures, this internal wastegate has high heat handing capabilities,...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$188.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1064)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$229.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1026)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$229.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1015)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$224.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1010)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$224.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1009)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$224.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1008)Kompact Dual Port Blow-Off Valve Kit 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...Designed to provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$359.95
- Turbosmart®Kompact Dual Port Blow-Off Valve Kit (TS-0203-1050)Kompact Dual 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 provide excellent turbo response and sensitivity when managing boost pressuresSilicone diaphragm with Nomex reinforcement to withstand high temperatures$519.95
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.