I purchased a 2012 900xp with low hours & miles. Has dirty dawg clutch kit and a PCV. My tach only reads 8500 and I have rev extend on, is that normal? My top speed is about 71, I want to do a KMS intake box, with BMP intake through the bed, with BMP double barrel full exhaust. Who should I get mapping from? Is there better things to spend money on to gain more power? I raced my buddy’s 1000 xp4, and he put the hurt on me, I’ve since added the programmer but don’t feel that’ll close the gap. Any input would be appreciated.