Usage Tips:Features: 1.Applicable Model: CDI box is replacement for Big Bear 350 1996 to 1999; fit for Wolverine 350 2000 20001, please confirm whether your model is applicable before buying. 2.OE Number: The part number of CDI ignitor unit module for reference is 4SH 85540 00 00, please confirm whether it is consistent with the OE you need. 3.Function: The CDI ignition box can be used to improve throttle response, ignition start faster, increase spark energy, and increase speed limits, increase top speed. 4.Durable Housing: The CDI box is protected by a durable housing that helps shield and protect against harsh conditions, vibration, wear and moisture, ensuring its long service life 5.Plug In Module: The CDI ignition box meets OEM specifications to ensure form and function match the , and is a plug in module that is easy to install. Specification: Item Type: CDI Box Ignitor Reference Part Number: 4SH 85540 00 00 Function: Improved throttle response, faster ignition start, increased spark energy, increased speed limit (increased top speed), plug-in module (easy to install) Fitment: For Big Bear 350 1996-1999 For Wolverine 350 2000-2001 For Timberwolf 350 1997 For Kodiak 400 1995-1999 PackageList: 1 x CDI Box Note: Please double check the part number and fitment of your item, matching information is for reference only.