Purchased recently an '07 miata with MOSS supercharger kit installed. Car is mint, never been beat on, and has drivability issues (electrical or vacuum is what it feels like). I beleive the issue is from the piggyback ecu controllers that cam with the kit since shaking them and their wiring harnesses can cause the symptoms to appear and go away. I chawsed the wires and vacuum hoses and thought i had it good to go but the issue is still there.

Would like to just drop it off and have someone who knows what they are doing take a look at it. Who would you guys recommend?