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BMW Z4 30i ECU Software Upgrade
Vehicle Application: BMW Z4 30i
Horsepower Gains: +115-125hp
Torque Gains: +125-135tq
Note: This purchase is for an AMR Performance software upgrade, scheduled and installed at AMR Performance HQ or ECU shipped in for programming.
***Due to the nature of this product, all sales are final. There are no refunds***
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z4 30i
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