[Kiwi Rider]

This is the list of official Kawasaki accessories for the 2018 Ninja 400.
Click on the image to get part #

Non ABS: https://www.kawasaki.com/Accessories/Vehicle/EX400HJF

ABS KRT: https://www.kawasaki.com/Accessories/Vehicle/EX400GJFA

Interestingly the Akrapovic exhaust is not listed.

 

[Rm1sner]

Just heard back from TST Industries. They have ordered a Ninja 400 and will start work on a line of products as soon as they get it. Hopefully the fender eliminator comes soon! Idk how long I’ll be able to look at the stock fender.

 

[Kiwi Rider]

Just heard back from TST Industries. They have ordered a Ninja 400 and will start work on a line of products as soon as they get it. Hopefully the fender eliminator comes soon! Idk how long I’ll be able to look at the stock fender.

Yep, fender eliminator will be a priority. We may have to wait for an aftermarket one to become available. With the frame being all new it's unlikely that ninja 300 parts will bolt on. Would be nice if they did though.
This forum should be a good place for sharing info on parts folk have sourced/fitted/tested.