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Old 11-15-2004, 07:43 AM
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Bavarian Bavarian is offline
Oversized Rooster 4.4i
Location: Toronto, Canada
 
Join Date: Jun 2002
Posts: 693
Mein Auto: '02 X5 4.4i
If you don't feel like paying $15999 for the Dinan supercharger system, but still want to supercharge your X5, you can obtain similar kits from ESS Tuning. They have two variants for the 4.4L engine...

6PSI System
Horsepower: 400 hp
Torque: 413 ft lb
0-60MPH: 5.7 seconds
Install: 12-14 hours
Price: $7995

OR

8PSI System
Horsepower: 422 hp
Torque: 437 ft lb
0-60MPH: 5.2 seconds
Install: 12-14 hours
Price: $9995

You can get more info from here.

However, you should really consider the 4.8is if you're willing to spend so much money on a mod that will void your factory warranty. The 4.8is is almost as fast the 6PSI system-4.4, yet retains the perfect balance of a tuned BMW engine. Oh, and you're covered for 4 years of warranty!
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2002 BMW X5 4.4i - Titanium Silver, Grey Leather, Activity Package, Front+Rear PDC, Boomerang2 Recovery System, Lumbar Seats, Auto Dimming Mirrors, Sunshades, Privacy Glass, 30% Front Tint
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