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    Help! Ported TB and manifold decreased my performance. What gives?!

    Hello folks! Long time reader, first time poster here. Really need you expertise on this. A few weeks ago i had my TB and intake manifold CNC ported. My mods are as follows: Exhaust and headers Manifold spacer (grimmspeed) CAI Pulley and now...ported TB and manifold * no tune Car performed...
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