Same, way trickier than the OEM. Luckily don't need to come out for a long time now. Do you think the bike sounds different?
I'm still waiting on the coil. It was sent 48 hrs, didn't arrive on Saturday, so earliest tomorrow now. Bad timing with the Bank Holiday weekend... :/ I was amazed how clogged my oem filters were. Not that many miles since I cleaned them. I guess that's the downside of a having a ram-air system - all the insects and everything disappear straight down the tubes and end up in the filters. So, don't leave it too long. When I clean the Pipercross ones out next, I'll drill the holes out bigger to try and make it a bit easier
Lock thread? I did take one of these filters out again to check it and had just as much trouble getting the bolts back in. The extra thickness of the flange on the filter wouldn't matter too much if the bolts went in at 90 degrees but because they go in at an angle, that extra thickness means the holes in the runners no longer align with the threaded holes the bolts screw into. For this reason, I would find it hard to recommend Pipercross, even if everything else about them is top notch. I suppose elongating the holes in the runners into slots might work but it's hardly ideal. I can't say I noticed much difference in the intake sound or performance.
I don't remember where I got them from. They are nicely made and supposedly have a great level of filtration and flow. However, the extra thickness of the flange with the holes for bolting them between the threaded holes and the air runners, makes it uncomfortably likely you will cross-thread the bolts in struggling to get them in at the necessary angle. For that reason, I do not recommend them, unless the design has been changed.
I got my Pipercross filters from Demon tweaks I think. I have recently removed and cleaned them should we every get out again! They are fiddly as are the D P ones I removed. What I would suggest is to line the screw up with the air box rather than the filter, so rather than get the screw 90 degrees to the filter flange try to line it up with where you think the thread is in the airbox.
So they have changed the design. Unless the flange has been made thinner though, I think there will still be a problem with aligning the bolts unless you modify the holes in the air runners as well.
