2015 R NINE T
Ahh, OK got it. It appears all wizz bang, but just slides off.
Looks like they’re just summarizing cause apparently it doesn’t fit SOME models...but according to BMW, it’s the same part for LOTS of vehicles (click the tab that shows what vehicles it fits):Beats me as well because I didn't think anything had changed in this area on the '17 model specifically.
Have a read through the thread I've moved your post to. And if you get to the end you have my respect! LOLStupid question, what exactly does that flapper valve do? How does it opening or closing benefit the bike, or take away from performance? Is it a pollution control device?
I have my flapper removed on my Pure, and find that it is rather loud. I might try putting it back on for a bit and see.I think my Pure is too loud with the flapper in and when I removed it on a previous Pure it became unbearably loud for me, so I reverted back.
PS. I love the sounds other people’s bikes make, but like my own as quiet as can be....maybe I should go electric
I miss the flap, (When not fitted) the BRAPP on low revs and low speed is excessive for me. Attracts too many head turns when around home streets.I have my flapper removed on my Pure, and find that it is rather loud. I might try putting it back on for a bit and see.
I was concerned with the A/F ratio on having a complete exhaust on a stock map more than anything else. I wanted to make sure I wasn’t running lean so I didn’t really pay attention to numbers. But I picked up the flapper valve on the way to the dyno session and we installed it there. Got two runs in with a full exhaust with the flapper, and then a single run deleted flapper.So did you dyno the bike before and then after the flapper delete or did you remove the flapper when you installed the new exhaust system and then dyno the bike?