I posted before, maybe May. BMW has a V23 upgrade for 06 pending. 05's already have an upgrade available. Many have posted their 05's did better with the upgeade. I will get the upgrade as soon as is available. May be better info in search here.

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Mike F
Current: 2017 Grand Cherokee HEMI
2017 Kawasaki ZX-14r
2017 Harley RG Ultra
2017 Harley Fatboy S