Hello Fellow DT300i owners, I thought I'd share with you today my newly acquired K&N replacement air filter for the DT300i. I bought this directly from K&N's official website. Part number is KY-2911. It says it fits the 2015 model, but it will also fit older model years like my 2012. Anyways, onto the quick and simple install!
Part number for the air filter!
Tools you will need: Phillips head screw driver (yes that's all you will need!)
Step 1: Place the scooter up on the center stand
Step 2: Remove the 8 black phillips head screws from the air box cover. (They are circled in red below) Then pull the cover off, it should come right off.
Step 3: Remove the 7 brass screws holding the air filter in place. Then pull the air filter out.
Comparison between OEM air filter and K&N air filter
Step 4: Place the new K&N air filter where the old filter came out. It can only go in one way! Then secure the air filter down with the 7 brass screws. Tip: Don't tighten the screws in all the way until you have all 7 screws in!
Step 5: Secure the air box cover with the 8 black phillips head screws. Again, don't tighten them down all the way until you get all the screws in! Optional: Attach K&N stickers onto the air box, and you're done! Pat yourself on the back and have a cold one!