No quirks so far but I only drove it around for like 1/2hour. It feels smoother on the highway now, but like I said it seems to tach even higher than the 5 speed at 80mph. I think the 5 speed was at 3,200rpms and the six speed runs at 3,500rpms. I'll have to get back to you on the shift points.
The new exaust to acctually a down sizing from the old system but should still be pleanty of flow and it's alot lighter with half the cat's, pipe, and pre-silencers. The new system is alot quieter too, but I guess thats not a bad thing either. I will get it weighed next time I go to the track and yeah I'll give it a few motor runs befor I hit the bottle. Besides I think under 13 you need a helmet.
So I'll save it for the end of the day