X5M help...
 

I bought a used 2010 x5m...it came with a dinan exhaust....how can I tell if its got an tuned ECU in it?... any ideas? thanks

Contact Dinan

I think u can call dinan and give them your vin number

yes, but what if its NOT a dinan tune?

A few years ago i bought from an auction a 06 530xit (station wagon) with Dinan exhaust(tips), CF strut bar and a "Dinan 5" badge on the back. I contacted them and after a week i received an answer that this is a scam and they only offer exhaust tips for this model. Later i found it has Dinan throttle body and flash, so everything was real. But the poor guy didnt have a clue.
On-topic, you can probably figure out if the car has a tune by dyno-ing it or by comparing some 1/4 mile trap speeds with another X5M that you know for sure is stock.