[bimmerace]

UPDATE: It's not slipping, limp mode causes this, it shifts on it's own at specific RPM ranges to optimize power while keeping it down with no boost.

When in manual mode it goes from 2nd to 3rd and so on, didn't get a chance to do lots of testing as I didn't wanna make things worse being 30 miles away from home in crappy weather. But it did it multiple times, the first time it wouldn't go past 3500 rpm.

It's fully moded but not being pushed yet, as I'm still in the tunning process, it's currently at 16psi and has never been passed that.

Mods are:
Ghassan N55 G700 Engine
SpeedTech Stage 3 EFR 8374 Turbo kit
xHP Stage 3
xDeleted
M4 437m wheels

I wasn't really thinking the tranny would go this soon, but with 134k miles, I guess it's fair? Anyways, what do you guys recommend I do? Buy used? Rebuild? Upgrade? What are the upgrade options?

Thanks!