Truck is a 2006 TBSS. Maybe some tuning experts could help... Truck is getting harsh up shifts after long highway runs. Around town no issues. I checked my KPA for a WOT run its 98 - 99. Filter is not restricting airflow. I thought it might be the MAF so I sprayed the CRC MAF cleaner. I turned the car off and back on... Issue went away while driving around town. Went on another highway cruise this afternoon and now it does the same thing once I get off the highway. I have a performance tune and CAI otherwise the truck is stock. MAF is clocked the same on the CAI as the stock setup and the connections are snug. No check engine light or anything... I would appreciate any insight. Thanks.

 

Check to see if it has slip codes. If it does theres your problem.