Just wondering if any X5 4.8i owner has done this upgrade. It's not cheap for what it offers...

Here's the updated link for ESS N62B48 E-Flash Performance Software

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2008 X5 4.8i | Wheels: Summer> style 336 20" RFT; Winter> style 214 Ferric Grey 20" RFT | Aero kit | ESS E-Flash tune | V1 | LCI Rear Tail Lights | Coding completed | Engine replaced at 90K