If you want to bring your ride to life then the K&N air filter is a MUST!!! We installed the K&N air filter and billet adapter on our 2013 Yamaha Raptor 700R and we thrown back (literally) by the amount of power this air filter allowed us to gain. The installation of the air filter takes only about 10 minutes, with the majority of time spent installing the billet adapter to replace the stock cone air filter mount; this required removing the air box (6 10mm bolts and removing all the connected hoses) and drilling out the stock plastic rivets to remove the cone and then bolting the K&N billet adpater up and reinstalling the air box and all the required hardware. We would highly suggest a K&N outer filter to prolong the life of the air filter and to add an extra layer of protection for your machine. Be sure to check out our upcoming review of the fuel controller/programmer which is something we highly suggest in order to make your machine run properly with the increase air flow. Check out the review of the fuel programmer [HERE]. Visit K&N Filters, Amazon, and other retailers such as Rocky Mountain ATV/MC to learn more and to order yours today and be ready to release the power of your ride.