The intake and exhaust of most modern dirt bikes come restricted from the factory. Removal of the stock air-box inlet snorkel under the seat will allow your XR to breath more free. The addition of an aftermarket unrestricted (free flow) air filter will allow your XR to breath even better. If you want to take it to the next level, then an exhaust or exhaust work is in order. All of these modifications will really bring your XR to life! Just remember whenever you do modifications to the intake and/or exhaust, you need to also check and adjust the jetting afterwards. Modifications like these will enhance almost any four-stroke dirt bike.

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