Check out this list of Yamaha R3 Performance Parts to pimp your ride. 
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Pulse IPT P.7 Battery

Think your R3 is light now" Check out the Pulse IPT P.7 battery. Measuring just 4.4 x 2.75 x 4.2 inches and weighing just 1.8 lbs., it will drop right into your R3. (The stock battery weighs 6 lbs.) It’s part of a series of entirely new batteries that are the smallest, lightest and most powerful lithium powersports batteries available today. Each one is individually fitted to your bike and has features unavailable in any other similar battery. Full Spectrum Power is the only lithium powersports battery made in the USA.
The new Full Spectrum Power Pulse IPT line of batteries are the first rider-centric lithium motorcycle batteries ever built. Each Pulse IPT has an integrated battery management system for better performance and longer life, a reset button to prevent your battery from being drained, an advanced case design that resists heat, vibration, gas and oil, and a wide variety of other advanced features not available in any other lithium powersports battery. For more information about the Full Spectrum Power Pulse IPT line of batteries, click below. Competition Werkes Exhaust Slip-On

The Competition Werkes Exhaust Slip-On for the Yamaha R3 replaces the big, ugly stock exhaust with a welded stainless steel slip-on that reduces weight and looks and sounds much, much better. Welding in conical sections of tubing instead of bending the pipe elimin...