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Dinan Performance DCT Software - 2008-2013 BMW M3


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The Dinan Performance DCT software enhances the driving experience of M3s with DCT transmissions with quicker & smoother upshifts/downshifts. It greatly improves the overall smoothness in D mode when driving normally, yet tightens up the shifting feel in S mode with quicker engagement. This is a must-have upgrade for any M3 DCT owner. "It makes shifts faster but does not change shift RPM. Shifting is actually smoother than stock." - Steve Dinan

About Dinan

Dinan knows European marques – quite literally – from the inside out. Whether you need hard parts such as exhaust systems or coilovers, or ECU upgrades to unlock your engine's potential, Dinan has the parts to take your BMW, Mercedes-Benz, or Mini to the next level.

Brand Dinan
Dinan Point Value1
Emission Code5
Labor Time (Hours)0.5
Product TypeTransmission Software
Part NumberD902-40A7

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Compatible only with vehicles equipped with the DCT transmission.

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