GFB T9033 BOV Respons TMS fits Mitsubishi EVO 3-1 T9033

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  • Adjustable bias venting BOV to suit all Mitsubishi Evo vehicles
  • Adjust between full BOV noise and factory silence without stalling or backfiring
  • Fully adjustable air flow weighting ratios from 100% atmosphere venting to 100% recirculating
  • 30% boost time improvement, better throttle response and classic BOV sound
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