I've noticed this maybe last week. whenever I'm cruising in either drive or sport mode, before i engage to 6th gear, car revs up to 3k then back down to 2k into 6th gear. and while it does that i feel a jerk on my car. I'm not sure if its coming from the transmission or somewhere else. kinda...
simple question.
I've got a eb mustang, recently installed a off rode downpipe, with a qtp cutout welded on before the big resonator. now i just need a tune. so the question is, what handheld tuner should i go with and with what tune? after tune is installed i won't be adding any other mods...