That looks like at least 3 cars lengths to me. Besides doing some 0-60 or whatever run like that, it's also the immediate power when floored. I've been in enemic vehicle that we're completely terrible at trying to pass with. There are times when the 4.4 hasn't felt like it was enough at times, so I can't imagine what the 3.0 would feel like. Gotta pay to play I guess. Chipped still wouldn't make a 3.0 as fast as a 4.4, and the S/C is the same price for a 3.0 or 4.4, so either can be modified to get a substantial gain. Don't get me wrong though, when I first was looking at X5's (pre 740iL) I was looking at a 3.0/5 spd to treat just like a 330ci...headers, large turbo, etc. Only problem was that there was NO aftermarket support for tuning. Nowadays, it's more available, but by no means is it cheap.

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