KKPIT ACTIVE DIFFERENTIAL LSD Kit Option 90° Gear Diff Active Diff Segment 90° x 1 piece This is an optional part for the assembly set that changes the gear differential unit to LSD specifications. Please use it for settings such as changing the operating timing. *Please note that the LSD kit is not included. This product is a hot topic in the RC drift scene. *This is a new, unopened item. If you are concerned about the condition, please refrain from bidding. *Please note that we cannot answer questions about installation, as the installation instructions are based on information found on the internet. *Please note that the sale may end early as it is also sold elsewhere. KKPIT original sponsor stickers are currently being given away with the purchase of KKPIT products worth 20,000 yen or more. They will be discontinued when supplies run out.