Turbochargers are essential upgrades for the race and motorsport enthusiast. Since turbochargers significantly boost power and torque, users need to make certain that proper blow-off valves are integrated to prevent engine failure due to excessive loads. At TDot Performance, we carry a huge assortment of blow-off valves, turbocharger components, and many other performance parts to certify a more efficient and consistent driving quality.


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Turbochargers are engineered to pump higher levels of air into the engine for more oxygen. Blow-off valves are utilized to regulate this elevated level of force to prevent potential engine or turbocharger damages. When a turbocharger is producing boost pressure and the throttle is unexpectedly closed, like when you're shifting gears or decelerating your vehicle, pressure rapidly builds up between the compressor and the throttle body must have somewhere to go. Should the pressure move continuously forward, the throttle body may get damaged but if it goes backwards the turbocharger can suffer. A blow-off valve features an integrated spring and diaphragm like a wastegate actuator that is connected to the engine vacuum. Vacuum that opens the valve is produced when the throttle closes. Blow-off valves reliably release the pressure to the atmosphere as the bypass valve releases pressurized air back into the intake air stream before the turbo.

TDot Performance offers blow-off valves and blow-off valve kits by premium aftermarket brands such as Megan Racing, GReddy, BD Diesel, and Banks Power. As an authorized seller, you can rest assured that all the products we have are 100% authentic, fully-sealed, and covered by the warranties provided by the original manufacturer. For drivers residing in Canada, we promise you won't find a lower price or a sweeter deal anywhere else as all your purchases are free from any customs, duties or brokerage fees. What you see on our website is the only amount that you need to pay. If you do manage to find a more appealing deal from another official seller, make sure to let us know and we'll make certain to beat their prices. What's more, TDot Performance promises a quick delivery system that takes only three to five working days to complete. For questions or assistance regarding the most ideal blow-off valves for your needs, please feel free to give us a call at 1-800-276-7566, or send us an email at sales@tdotperformance.ca.