Join Date: May 2001
Location: Minneapolis, MN
There are two real options here, based on the amount of cost and performance increase that one is looking for. 1st are replacement reeds. In this catagory, you have 3 real players, stock, Boyseen, and CarbonTech. IMO, the best bang for the buck are the Boyseen Reeds. They are just as reliable (or more than some) as the OEM reeds, and will give a noticeable gains in throttle reponse with the dual petal design, and at a cost for less than OEM.
2nd are the entire aftermarket cage design. While I have yet to use a set, PSI has a unique aproach to their 1st take into this market, with aluminum cages and a 3 petal design. But for what I have used, I am a fan of the RAD valves by Boyseen. I am not trying to being biased, but Boyseen has been in the buissnes for a LONG time, and they manufacture unique cages for each design. Some others use only 1 or 2 different cages and "adapt" them to fit into your engine. I can not see any effeciency coming from such a thought. Many have had great luck with V Force also, but pay attention to what series you purcahse, as they have had recalls and notices for failing components on certain models.