A shop in Granbury Texas called Perky Performance does custom tunes and dyno work! The owners name is Yuri. He does a great job. I take my car there for everything! give him a call....
https://www.facebook.com/pages/Perky...98064056939424
his info is on the shop page... but if you dont have a Facebook,
3736 West Highway 377 Suite A
Granbury, Texas 76048
(817) 579-0999