Damn your X5 is awesome... I bet it sounds sick with that exhaust. The sound of the 4.8 was one of my favorite things about our X. I wish ours was more reliable.... we're still going through withdraw but the kids come first now.. we're down to 3 Bimmers lol.

Shoot me a PM if you need anything or have questions about the e46. Between my wife and I, we've had 3 of them. My black ZHP is pretty heavily modded. Dinan, LSD, short shifter, suspension, etc. etc. I have lots of spare parts laying around. I.E., I think I still have the stock ZHP springs... will lower a non sports package car about 3/4 inch or so...

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2005 4.8is Le Mans Blue
2011 35D Space Gray