The Yamaha FZS V3 Dark Knight Edition is also a motorcycle that often needs to find ways to improve their rides. The bike performs well out of the box, but some riders are always seeking that edge. The difficulty is making those changes that enhance performance without violating warranty. Potential upgrade areas are common around the existing air intake, exhaust system, or ECU tuning. The line between warranty safe modifications and modifications that could cause issue with Yamaha service centers is very blurred, though. Riders often discuss the pros and cons of different upgrades, discussing which ones give you the most bang for your buck while staying in warranty. But if such modifications necessary on a bike that is intended for everyday commuting and occasional highway jaunts?