Okay, just need clarification here...

So a 5 speed clutch kit and flywheel will fit and work in a 6 speed bell housing provided that I use the 5 speed starter motor (as per Polar). The package I have is from the dead 5 speed gbox so they all match and should be no drama fitting. Right?

According to Tuna and Flash, a 6 speed fly and clutch kit will fit a 5 speed bell housing provided that a pre-99 or a 6 speed starter motor is used. What does the "small modification" involved?

When the 6 speed was being fitted in my car, the STI flywheel and clutch that was used was massive compared to the 5 speed but on the road and at the strip, my original set-up performed better.

Spikey, we definitely need to change the clutch before the bottle feed is turned on.

Cheers