Dyno Tests
 

How much is reasonable to pay for a dyno test for a '12 xDrive50i with Dinan upgrades?

Does a dyno test harm the vehicle at all?

Does anyone like a particular shop in So Cal to have this done?

Thanks

I've used dyno's for a decade plus now and they're certainly worth it if you're tuning a vehicle (and have a shop who knows how to adjust a tune, or can remote in with the tuner). I've used both RWD and AWD for different cars, most recently for my fully built 335xi. Most shops charge the hourly shop rate for dyno work and you get however many pulls you need until you get it sorted or want to throw things. Throwing usually comes first :thumbup:

For the X you'll need an all-wheel dyno. A quick google search should yield some results in your area. Call them each and ask what they charge. Are you tuning it?

Properly done a dyno should not harm your car. It shouldn't be any worse than running your car at full throttle.

I've seen dyno day events where you pay $90 for 2 pulls. But that is a special event, it depends on your relationship with the dealer.

$90 sounds reasonable. It is about $150 here in the NYC area. You'll want an AWD dyno. Then you also have to choose which dyno you want to test on since all dynos give out different numbers (ie. Mustang dyno vs Dynojet). Then a lot of places recommend you do a pre-dyno inspection for an extra cost to make sure everything is running fine and there are no leaks.