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Dinan stage 1 ECU upgrade

5K views 0 replies 1 participant last post by  will3hawks 
#1 ·
Just bought a 2003 325xi with 62k and a manual trans. Has anyone had the Dinan Stage 1 ECU upgrade done on their car? The local BMW/Dinan dealer will do it for $300. Any drivability problems? Gas Mileage? Top Speed for 325 with the upgrade?

Thanks in advance for any information.

Will
 
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