Intresting, Ive spoken with others on the site who have set up the 300 kit safley (jet wise) and had no issues, my view is that id rather have 70hp from a safe 300 than 70hp from a tuned to the nuts 250! when (i have to say that ) my top end goes or its time for a rebuild im gona get the 300kit, go premix and have it set up safe!

and yes TYGA have excellent customer support!! MAtt and Paul always take time to answer your questions!

intresting about apex have they had 300cc experiance then from tyga nsr's, what problems did they find? and dose anyone have an nsr250 with 70hp? last i heard it was only the RGV boys who where getting that kinda figure?