i dont know if any of you have this too
this happens when i take my foot off the gas and let it cruise
at low rpm it gets jerky
is it because there is not enough exhaust to push that flap in the stock exhaust?
so instead of it being kept open at normal driving speed
it opens, closes, opens, closes...
it kinda reminds me of how old cars backfire they jerk forward.

 

downshift.... it is the tranny yanking you around because the rpms are too low. If you are in 1st already, then put in the clutch.

 

are you talking about cruising in first gear? Its just gear lash. There is slack between the gears and other drivetrain components so when in a low gear it bounces between the gaps. it is most notice able in lower gears.

 

hm ok thx guys