Car drives fine no issues no cel just don't want to shift into 4th gear in drag or sport mode.. I've tested some more and it dont do it in just drive so i don't think it's a transmission issue
Anybody have issue with car not shifting into 4th at dragstrip don't shift hesitates real bad than shifts car Is running worse than stock and sent data log to tuner and all I got back is tune is correct.
Yea driver side wasn't bad at all... but passenger side I could not get bracket on without having header completely loose...have you had any codes after install I got p0133 and p0153 both for o2 slow response.
Has anyone installed the xforce long tube headers on a 2018+ mustang gt I am have issues with getting passenger side motor mount bracket on after installation of the header