My guess is it modifies some sensor inputs to the DME, and I can say that it would void warranty on any engine or electronics problems. I wouldn't trust it myself.

If you are really curious about it ask them to send you the install instructions and I can look up the pin numbers at the DME and see what signals it is modifying.

__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is