This is a brand new, re-engineered replacement high-performance CDI unit for your 2008-2009 Arctic Cat 500 FIS 4X4 Manual or Automatic. This redesigned unit boosts RPM levels by 1000 and the timing curves increase horsepower by 5. This replacement part features a higher rev limit and removed the reverse rev limit. It overrides for full performance at all times. This unit features increased spark energy, improved throttle response, easier starting, and a plug-in module replacement that allows for easy mounting. This CDI unit meets or exceeds all factory specifications and is a breeze to install. This unit replaces Arctic Cat # 3530-039(MGT053 & F8T39272) 3530-040 ( MGT058 F8T39274) and 3409-028 only...and DOES NOT work as the replacement CDI for the Suzuki Vinson 500. We offer a test/ repair service for the the Vinson 500, if if you are interested, please send us an email. Our email address is on the homepage.
