In order for your 4-door Polaris General XP to function like it was designed to do, it is imperative that your motor gets ample amounts of O2 to mix with fuel and combust to generate HP in the motor. If the fuel-to-air ratio is off, with too much fuel for the available air, or too much air for the available fuel, then you're sure to experience heating problems, performance problems, and problems with premature wear. Several firms out there manufacture frog skin pre-filters for the air intakes of the Polaris General 4 XP 1000 to prevent moisture and dust from entering the belt housing / engine. Plus, there are off-road companies out there that also make air intake screens and air intake covers to block everything sticks, twigs, and leaves to insects and small mammals! Whatever it is that you seek, it can be sourced from Everything Polaris General! Not only do we sell air intake parts, air intake accessories, and complete air intake kits for the engine of your XP 4 1000 General, but we also sell products like blowers to deliver more air, and fans to move air with greater speed and efficiency. No matter if you're after some intake accessories to act as protective measures, or air intake accessories for a better-performing UTV, you can breathe easy with the Polaris General 4 XP 1000 air intakes and air intake products from Everything Polaris General!