Thread: JB4 Group Buy
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      11-27-2014, 03:11 AM   #7
dapple
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Drives: F10 M5 and F80 M3
Join Date: Jul 2013
Location: uk

iTrader: (0)

Please post any questions here, I will answer.

Warranty - remove the JB4 before any dealer visits to avoid issues.

Power on map2 - Power doesnt drop off so much as flatten off. Map 2 only really suitable to those with downpipes. car feels so strong on the road with map2 (in the right conditions)

Traction - ///M map is great in our current climate, nice progressive power delivery.
Appreciate 0