With the amount of low end torque it has I'd imagine it to be a solid step up from the E53 4.4i (rip).

I actually installed an E70 trailer hitch toady at work, easy if you did the E53 install. The thing with the retrofit programming is the E70 platform has alot higher software integration level than the E53/E46/E39 etc. and usually requires a decent sized software update to the rest of the vehicle. But when we install a hitch at the dealer we charge the labor for install but the retrofit programming is covered by warranty... so that shouldn't be a problem. Just be prepared to leave the vehicle at the dealer for a day while the programming is done. (loaner car time)

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X5 pics

RIP 4.6is.....

2003 4.6is