I have a 2001 Raptor that is getting a WB E-Series slip-on, K&N filter, and 6 one inch holes drilled into the airbox. Can someone please tell me what mains they would jump up to. I am at 1400' elevation at aroung 40 degress F. Any help would be appreciated.

 

IMO first junk E-serie since you are notgoing to be happy with the pipe, get different pipe like LRD,Yohsi,Spark or anything but that.

I used to own one and it ran flat on 3rd gear to 5th gear. Once I got LRD it ran way much better then E-series!

 

Hmmm, I'm no WB expert but with all them holes in the airbox I would try using 150-155 or 155-160 Mikuni mains, leave clip on pos 3 to start.

 

If your still waiting for the pipe I would run the Dynojet stage 2 kit with it I like that kit and they give good jetting tips and have great needles

 

First off JMO,I would get the GYT-R jet kit and if your running with no lid (Best Horsepower ,Best way to run the Raptor,JMO)Run 155/160 ,Depending what alltitude your at,and if you run no lid get the pro design filter,I tried to cut corners, but just do it right the first time and keep riding[img]i/expressions/face-icon-small-cool.gif[/img]