can anyone here answer these two ?'s.. is the '01 raptor the only one that came with titanium valves?...

also what would be your estimate on horsepower for an '01 raptor with an e-series pipe and a k&n twin air hard filter?

thanks..

 

I don't think any Raptor came with Ti valves, the YFZ does though.

If your quad is properly jetted, about 40-45 hp.

 

The YFZ 450 is the first quad to ever have titanium valves

 

33-35 hp stock, plus probably 8-10 hp for a full pipe and filter. Depends on lid and a few other things though.