Evoluzione Race Air Filters for the BMW K1200R

Are the rumours true?!

I frequent a few bike forums to keep on top of what's going on. Sometimes you get a collective opinion about some issue. The correctness of this opinion can be questionable, but when there's pretty much a unanimous voice raising one product to the skies, it needs investigating a bit more.
It seemed like everyone who had installed the Evoluzione Race Air Filter kit onto the BMW K1200R (and K1200S) was extatic about it. They raved about more power, better throttle response and an awesome sound. Could this be true? Surely exaggerated..?!

The rumours are true - these filters are awesome!

I've now ridden about 500 miles with my filters on, and I still can't get over how incredible they are. Yes you get more power, and yes you get a much crisper throttle response, but what you can't describe is the deep growling/howling sound the bike makes. Together with a Laser DuoTech end can the bike now sounds truly magnifficent. Yes, amazing. Fantastic! I used to compare the sound of this engine to the sound of an M3 howling at full speed, now with the exhaust and the filters on it sounds like a race tuned M3. And the grin it produces under my helmet is just silly. The first time I rode the bike with the new filter I was litterally laughing out loud in my helmet! When was the last time you had that experience on your bike!?

Techical background

The standard K1200R comes with a one air-intake and one single filter. There's a snorkle that grabs air from the front of the bike and pushes the air through the single filter into the air box. On the fully-faired K1200S there's two snorkles and two filters. One on each side of the headstock. This explains the power difference between the K1200R and the K1200S. The Evoluzione Race Air Filter kit for the K1200R brings dual filters to the K1200R, and they're more high-flowing than the original paper filter. This in combination with the aftermarket exhaust can will raise the peak power between 10 and 15 bhp. Several people have taken their bikes to be Dyno'd and have returned with more than 150bhp on the rear wheel. That's nearly 10%! To me, this is really good bang-for-the-buck-ratio!

The Kit

Evoluzione Race Air Filters, Click here to view larger image (NaNkb)

What's in the box; Evoluzione Race Air Filters

There's not much in the little discrete package; two filters, two billet filter holders, two clips, and the instructions. The filters are of nice quality and you feel they've had more attention than the original paper filter. The billet holders are gorgeously machined. The two clips are for the LHS filter as the RHS one already has got the clips on the bike.

Fitting the right hand side filter

This one is really easy. The annoying part is that you have to remove all the panelling - even if there's not that much panelling, there's still enough to be tedious (poor K1200S owners!). Once you have the panels off, you'll clearly see that the snorkle is attached to the airbox with two clips (exactly the same clips as are provided in the Evoluzione kit), the in between the airbox and the snorkle you'll find the filter.
Undo the clips, remove the snorkle and filters, refit the race filter with new billet filter-holder, replace clips. Done. Miller time! Not just yet...

BMW K1200R Stripped panels on the RHS., Click here to view larger image (NaNkb)

Taking the panels off reveals this snorkle. The Evoluzione instructions are very clear and there's no problem following them.

Removal of the original air filter on the BMW K1200R, Click here to view larger image (NaNkb)

Remove the clips and the orignal air filter and snorkle pops off. Lots of goo in there.

Evoluzione Race Air Filter on the Right Hand Side fitted., Click here to view larger image (NaNkb)

Put the filter in place, and use the original pins to hold it in place. Right hand side done.

Fitting the left hand side filter

This side is more tricky. Once you have the panels off you'll be greeted with a crippled airbox and the ECU right in front of it. Your job, Mr Phelps, should you choose to accept it, is to use a Dremel and without creating too much debris cut through the airbox and make a hole for the new filter. This BMW manufacturers warranty will self destruct in 30 seconds... (I'm not sure about the warranty, ask your dealer!).
I used a steel cutting disk on the dremel as recommended. I got most of the cutting done with it, but I just couldn't reach to all places, so I also used a little routing thingiemajig. Worked quite well. Just a big word of warning: Debris that go into the air box will most likelyl end up in your engine, this is bad, so try to avoid getting debris into the air box. I didn't manage to keep the airbox free from debris. But in the end it worked out well.
Once you have the hole cut, tidy it up as much as you can without creating too much debris. Use a vaccuum cleaner to get the majority of the debris, and finish off with a cloth and more vacuuming. You can't be too careful. Once the edge is reasonably nice, it's time to fit the filters. Your experience from the RHS should make this easy peasy. Filter in the holder, slide in, affix with clips. Neat!
Then you have to put those panels back on. Dont' be confused by the leftover parts; there should be a few, including one of those little locking-discs. It's from the snorkle that you've removed.

Using an iron cutting disk to cut the hole for the 2nd air filter, Click here to view larger image (NaNkb)

Just about to start to cut the hole for the LHS air filter. Using a Dremel and an iron cutting disc.

Mid process of cutting the hole for the second air filter for the K1200R, Click here to view larger image (NaNkb)

After a bit of cutting your soon-to-be-hole will look something like this. Notice the "cobweb" - it's melted plastic that's been thrown away from the high-speed cutting disk.

The hole is cut for the 2nd air filter on the K1200R, Click here to view larger image (NaNkb)

When you manage to get through, it'll look something like this. Notice the rough edges and, some debris in the intake. The debris is not good at all. It is however completely unavoidable unless you take the complete airbox off.

The 2nd air filter hole is now cut and tidied, Click here to view larger image (NaNkb)

After a bit of tidying you'll end up with this. I used a vacuum cleaner to get the debris off, and a rag to wipe most of the "cob web" away. Not too bad for a few minutes work.

The second Evoluzione Race Air filter fitted on the K1200R., Click here to view larger image (NaNkb)

There you go. The left hand side filter fitted. Now all we have to do is put the panels back.

Just a word of warning

This happened to me, and I know it has happened to a few others, with varying degree. Just be careful. Evoluzione has been very forthcoming to help customers out, so don't hesitate to contact Evoluzione for tips, tricks and advice. When I started the bike up, everything was fine. I let it idle a little bit to get the oil pressure and a bit of heat into the engine. Then I revved the engine up, and the throttle got jammed at full throttle with the engine bouncing off the rev-limiter. I turned the kill-switch immediately and wiped some sweat off my forehead. I believe this anomaly could have been affected by debris getting into the injector bodies. However, I started the bike up again, and was very careful. I tried provoking the throttle sto stick, but to my joy, I failed. The throttle has not stuck a single time since, and everything seems to be in order. Mind you, I took it very easily on the first outing, just in case.

Well worth it

I just can't express it how good this bike sounds and how good the throttle response is. When I blip the throttle in down changes it just gives me a very metallic, quick roar. I don't know how to describe it. Overtaking cars is so much fun; lie behind them and then open the throttle to hear the bike suddenly changing tone, and shoot you past the car in no time. The power increase is noticeable and the front is much harder to keep on the ground in heavy acceleration. All good fun. This modification is truly awesome. Be safe out there!