Category: Engine Performance > Speed Calibrators

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TransTuner

Granatelli Motorsports

Now there’s a simple plug-in device that makes your automatic overdrive transmission really perform. TransTuner™ increases line pressure and shift firmness, eliminates expensive valve bodywork, eliminates overdrive torque converter shudder, and eliminates burnt bands increasing transmission life. Best of all, TransTuner™ won’t void the factory powertrain warranty. TransTuner™ is available for popular GM and Ford automatic overdrive transmissions. Installation takes about 10 minutes with no special tools required. Each system is backed by a limited 90-day warranty.

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For more information on this product, visit Granatelli Motorsports' website.