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More about Blow-off Valves

A blow-off valve releases pressure when the throttle closes. This helps reduce compressor surge and can relieve the turbo between shifts.

Pay attention to connection type, spring strength, recirculation or atmosphere, and whether the engine operates with MAF or MAP. Not every engine runs well with an open-vent blow-off valve.

Therefore, don't choose based solely on sound, but on what suits the intake and ECU setup.

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