I have a 2016 Challenger SXT.
1) The throttle delay/lag seriously irritates me, and I want to reduce it.
2) My transmission has a fault and is a bit rough downshifting from 3-2, but only if I leave it in full auto and let it downshift at 6mph. If I select 2nd at 15mph, it's smooth. Can I use HPTuners to change the 2-3-2 shift points, without changing every other shift point too?
And I see that for the upgrade service, I have to include an HPT file if I'll be using a donor PCM. How do I get that? Do I buy the tool first and then scan to obtain the HPT file?
Thanks.