My stock clutch slipped with a custom Stage 1 map, which had 80K on it at the time. It's mainly when accelerating hard up a hill it will slip, especially in 4th at 3000rpm.
Best thing to do is get the map done and if the clutch slips, you've got some expense ahead. If it doesn't, happy days. Standard clutches are OK for the first half of their life with Stage 1. It's when they are getting old they start to slip. As yours is only about 40K old, it might be OK. A new clutch at 45K is unusual though. Previous owners must have ridden the clutch a lot to burn it out that quickly.
The Helix organic is an OK upgrade. I say 'OK' because whilst it can handle Stage 2+ levels of torque, the bite is right at the bottom of the pedal and causes baulking and creep in traffic, and it's a lot heavier. It's a pain in the arse. There is also the Sachs sports clutch which is pretty much the same as the Helix. Not sure where the bite on that one is though.