I just want to make sure the K&N fits and verify the part number before ordering 10 of them.
I installed a K&N KN-159 a few days ago on a 1299 base. It pops on the nipple just fine and seems to fit better than the stock ones I remember. My bad, I should have taken pictures, or a video to show how well it fits over the nipple. I've installed a few different types of filters on the 1199 and a K&N on the 1299. The fitment is very positive on the K&N (1199,1299.) Additionally, that cover plate is made to hold the filter in place over the nipple.
I did compare the:
stock 312B (came out of 1299,)
291C (bought couple years ago from dealer for 1199,)
and KN-159 (started using last year on 1199)
standing up on the bottom plate and examined the rubber o-ring that fits over the nipple inside the engine. The 291C (old filter, dealers told to sell out of before selling 312B,) has a couple of o-ring type ridges on the inside of the rubber part. The 312B (current 1199 and 1299 filter,) and K&N KN-159 are almost identical in terms of how the rubber piece looks.
Another user is going to use a digital caliper to measure the differences. There will be differences, but they will be slight differences. I dont think enough for any of us to worry about. The K&N has been in my bike now for 50 miles and not causing any lights or problems and I know it wont as it is the aftermarket replacement filter made for the 1299.
I got mine from Amazon in two days
Thats the best place I've found to order them. They're about $10.00 plus tax. If anyone has found them cheaper, let us know! Honestly, cant get much cheaper for a superior aftrmarket product (compared to OEM.) I had the receipt for a filter I picked up a couple years ago for $35.00 from the dealer... FOR ONE.
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