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Quantity
1
Description
The GS7D36SG transmission is a 7-speed dual-clutch transmission (DCT) developed for various BMW models equipped with N55 and S55 inline-6 engines, including the F80 M3, F82 / F83 M4, and F87 M2.
When enhancing engine performance, it is cru...
Reviews
5.0
3 ratings
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Best DCT Upgrade I’ve Ever Used
This is by far the best DCT upgrade I’ve experienced. The Stage 2 calibration completely transforms the GS7D36SG gearbox — shifts are incredibly fast, precise, and perfectly timed.
Under full load, the transmission responds instantly with seamless gear changes and no loss of power between shifts. Launch control is much stronger and more consistent, and the overall driving experience feels significantly more aggressive and refined at the same time.
What really stands out is the balance — maximum performance without sacrificing smoothness or reliability. The gearbox now feels exactly how it should from factory, but on a completely different level.
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Protuned · May 5, 2026
Sales crew is pretty quick to respond and helped me out
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TJ · June 9, 2025
Clutches
Omg I can't say how please with this company..they were very patient with me and when I did order they shipped it in 2 days ! Just absolutely amazing