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I have tried to reach Stephanie at Bell Tuning; however, cannot reach her. I'd like to buy this TBI for my Mazdaspeed Miata. Description from BellTuning.com:This is the TBI tube that fits the Forge and OEM Bypass Valve. The BTP Throttle Inlet Tube is the one only one to feature a port for both the stock IAT sensor and GM Sensor! We will include a plug for both bungs in case one is not needed. With the BTP throttle inlet tube installed you will not need a new tube if the ECU gets upgraded!