This is Lance over at ZTek Exhaust. I have been working hard with a team to develop a exhaust system for the X5. I need a local SoCal (Preferably in the Los Angeles Area) X5 owner to get verified dyno results, sound clips and a review. I will be working with my manager on getting some freebies as well like a free install and a free or discounted exhaust system, give me a call for more info.

Anyone interested please post here, PM me or call me at 1-866-ZeroTek or my cell 916-717-8151.

How many of you here in X5 world would be interested in arranging a Group Buy? Please post here:
Group Buy Pricing 3-5: $899 Shipped. 6-10: $819.99 shipped, 11-20: $789.99 shipped.

1. copy and write your sn here
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VIDEOS/SOUND CLIPS:

http://site.zerotek.net/x5-startup-rev.AVI

http://site.zerotek.net/x5-ZTEK-city-drive.wmv

The sound of the startup and rev is very close to the exhaust but the sound and tone is nice and deep, but it is not obnoxious at all, very respectable sounding startup that your neighbors will not be able to hear in their house. Quiet idle, but slightly deeper note. Reving and hard acceleration is deep and throaty, while highway crusing and around town driving is mild, with ZERO resonance and no droning whatsoever (SAME AS STOCK sound levels while crusing on the freeway).