Lately Ive decided to start upgrading my 03 Banshee. I recently got a toomey tr6 exhaust system and jets, new front sprocket and a few other small things. I was going to purchase a cylinder head and some domes and I was wanting to know if anyone here knows anything about 4 wheelers and if you used either of these 2 heads. http://www.nossmachine.com/banshee_heads.htm , http://www.trinityracing.com/products/yama...tageivhead.html Im just trying to decide on one of these heads. Also what dome sizes would you recommend. THANKS!