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Turbosmart Kompact Dual Port Blow Off Valve (04+ STI)
50-50 Recirculation/vent-to-atmosphere valve for a VTA sound at peak boost, and a quiet operation at low boost
Billet aluminum construction
Precision machined, hand-assembled and quality tested in Australia to the highest quality standards
Helps eliminate compressor surge and the recirculation port satisfies the ECU
Direct bolt-on replacement
Includes hardware and gasket (where applicable)
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