Mine ia an Exhaust.Control.Valve.
I actually lose HP in general but gain a tiny bit of low end torque when I close the valve, since car gets very little back pressure.
NOT A CUTOUT (this is only for Forced Induction cars/for gains)
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2012 PW - 6MT | Meisterschaft CBE w/ ECV | EVO-R Front Lip | Enkei SP3-RS JDM Wheels | Sticky Hankook RS-3's | Megan Racing Springs | Hot Shift Knob | JDM Brake/Fog Light
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