Hey huperoptik, about that Inmotion ECU on e-bay. I contacted the seller and asked if they had done any SRT6 Crossfires and if so could they give me a way to contact the person to see what their opinion of the upgrade was. This is what I got back if anyone is interested:

Hello,

I cannot give out the email addresses of my clients without their consent. We have setup a Forum on our website that allows you to communicate with customers directly: http://inmotionusa.com/phpBB2/index.php

Maximum HP increase after tuning is 10%.

I look forward to exceeding your expectations.

Gunter Heckman
www.inmotiontuning.com

I joined this little forum and made a post asking if anybody with an SRT6 or a SLK32 have had them do a chip, now I guess I'll wait for any replies. I'm wondering if this forum is even real, I looked through it some and if it's real people seam to be happy with their product.