[al lkosmal]

rutager.
I would recommend that you use the Left Foot dyno method...and get the 911 in good tune and then, if needed,... head to the local dyno shop you are mentioning.....

a dyno tune is a good thing, but does not necessarily replicate all of the driving conditions that you will experience in every day driving ...i've found that a blend of "real world" driving/tuning and dyno tuning seems to produce very good results.

I suspect that the combo of real world and left foot dyno will produce very good results too!

To date, I have primarily used real world driving (right foot dyno) to tune my installs....I have some great driving roads available to me...., nice twisties, stop & go, freeway and nice long stretches of frontage roads along the freeway...but after a ticket and...luckily being let off with a warning after getting clocked doing over 100 on a frontage road in a 911 with a 3.5 I built.......the left foot dyno method is sounding like a much safer/saner alternative to me.

Very cool idea, Jamie.

regards,
al