27/03/2025
Frank's 2022 GMC Denali L5P
This truck was "tuned" elsewhere before coming to us. Unfortunately for the customer, he was extremely ripped off as the job was a disaster! It blew loads of smoke, banged into gear, had half an exhaust system even after paying for a complete system, had coolant hoses hanging dangerously low under the truck, and was missing many parts that his invoice said he paid for! He was also charged $18000 for this work, which should have only cost around $6000.
🔸Rectify Exhaust System
🔸Gearbox Modification to suit Tune
🔸Rectify AdBlue Issue
🔸Supply and Install Downpipe
🔸Rectify EGR Issue
🔸3 Tune Select Dyno Tune
🔸Banks Power Airbox upgrade
Tune 2 (towing) produced more power and torque with no smoke than the previous "full send" tune. There is no banging, surging, or shuddering.
Just because they have "American Truck Expert" all over their business doesn't mean they are.