Engine Management
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MAXXECU RACE Premium
$1,880.00
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BMW BSD communication board
$65.00
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MAXXECU PRO Premium
$3,913.00
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Holley Terminator X Max vs. MaxxECU vs. Haltech Rebel: Which Standalone ECU is Right for Your LS-Swapped BMW?
Holley Terminator X Max vs. MaxxECU vs. Haltech Rebel: Which Standalone ECU is Right for Your LS-Swapped BMW? When performing an LS swap on your BMW E9X, selecting the right...