I don't have this problem on my N/A but sometimes it wont go into reverse you have to put your foot on the clutch go back to neutral, foot off, back on, then into reverse. Also with this gearbox I find that if you fanny around with it and try to be too gentle with it then it wont go in gear, you have to give it some force, not ramming it in but give it some good amount of force and it goes in easily and smoothly. I love the gearboxes on these cars, no spongey nonsense, just a nice clunk each time you change gear.