I remember seeing a photo of a moto cross 250r that had a Seadoo exhaust valve on a ProX cylinder(I think). Are these cylinders/exhaust valves for sale, and has anyone used this set up? A guy I know said he is getting one and I didn't think you could just buy one? Any of you 250R guys know anything about this?

Thanks

 

I believe CT makes one. Contact them.

88 TRX270R
00 400EX

 

Ct makes it, it is a powervalve. It is supposed to give more power everywhere I think.



woodrider 400 2000 400ex renthal trx bend, ac racing full chassis and swingarm skid, nac's blockoff plate, pep e-z clutch. works triple rates up front. Looking for 88 250r.