There is an advertiser on this site that claims a DYNO run on a bone stock 2014 Mustang GT pulled in a 406 RWH reading at 6600 RPM and was still climbing. That seems very high to other claims in the last years. Even my DYNO Expert I just talk to yesterday says 375 is a typical run. With the 2018 Mustang GTs, magazine review people are overwhelmed these 2018s will do 425 at the wheel. Seems the feel of a 3450 lbs 2014 Mustang GT with 406 RWH would be way faster then a 3850 lbs 2018 Mustang GT with 425 RWH. So a test drive of both cars back to back might result in the same gut feel. Pop the hood on the 2014 and say, OMG this 2014 has a BOSS ECU. I made a copy of the DYNO graph for posting later. BOSS Long Block in a 2014 GT with a BOSS ECU???