Turbo/Supercharger for X3?
 

Does anyone in X3 land know of an aftermarket turbo- or supercharger kit for teh X3?

I have an '04 3.0 6-spd X3 that we bought in VA. Last summer, we moved to Santa Fe, NM, where driving is still fun (e.g. Fairfax Co, inside the Beltway, with 1.1 MM people, vs the state of NM with 2MM in the whole state -) except for one thing - the altitude 'discount' on horsepower. You lose ~3% for every 1000', so at 7000', I figure I'm down about 45 hp. I put on a Dinan CAI, Stage II software, & cat-back exhaust, which crisps things up a bit (13 hp, 17 ft/lbs before 'discount'), but the only way to properly compensate for the altitude is via forced induction.

I've driven an '07 with 265 hp, which is a nice improvement, and it's unclear when/whether the twin-turbo gas or diesel will become available in the X3 (besides, this one's paid for!)

Any help would be appreciated.

Cheers, M2

http://www.essshop.com/default.asp?c...ubcat2=223&id=

Here is a link to ESS Tuning. They offer a kit for the X3 3.0. However I have never read of anybody using this kit. I would spend some time on various e46 forums and read about people using this kit on the M54 before spending my money.

Thx, I visited their site, sort of expensive, I'm hoping to find a vendor in the U.S. (support/warranty considerations . . .)

I suspect Active Autowerks offers something but am not sure. While I still owned my 6-speed I spent some time researching this project. Plan to spend at least $5,000 because you really want to do this right. You need the FI component (whether you go turbo or SC is up to you), additional charge cooling (ie intercooler), proper injectors and software to richen the mixture under boost. Once you get it all installed the only really safe way to proceed is then to have a competent tuner do a dyno tune of your ECU. All cars are different and you really want to make sure yours is running at a safe air/fuel ratio under full boost.

Also plan to remove the CDV...this is fairly simple and should pose no real challenges.

Good luck with the project and let me know how it works out!