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ModalWorks performance blow-off valves are here, and are critical performance feature to help you push substantially past stock boost levels. These units are 100% mechanically controlled by engine vacuum, resulting in better throttle performance and modulation during both partial and full throttle driving modes. By divorcing your system from the stock ECU controlled unit, the OEM control units can no longer vent unexpectedly which is an annoyance for drivers.
Additionally, you no longer have to worry if your system is holding boost properly, as the TiAL units use boost to its advantage. When shut, your engines boost is supporting the valve closure which promotes an airtight seal, unlike other designs that rely on a stiff spring to fight boost pressure. This design ensures a great seal and is incredibly responsive so it vents air quickly between shifts. The body and all internal components are CNC-machined from 6061 aluminum alloy and features a large 1.50 in (38.5mm) valve.
Each kit comes with OEM valve simulators so your ECU thinks the electronic diverter valves are still installed. No check engine lights!
100% Made in the USA.
We chose the TiAL QRJ blowoff valve units for this product because of their lightening fast response and their amazing ability to hold boost pressure. These valves use a low force spring with the assistance of boost pressure to help force the valve shut, whereas other products rely solely on a large stiff spring that has to fight against boost to keep it closed. These competitor designs generally are not as responsive, are prone to leakage, and require fine tuning of the spring to get them to work properly. Our design with the TiAL units are plug and play and really improve the vehicle driving experience.
Choose from a variety of build options. Red or Black, with or without diffusers, and the ability to add a dedicated boost tap.
03-24-2022, 07:14 PM
