That's weird. My instructions are 4 sides of A4, headed "Tune-Up Eprom Notes BMW Motronik MA 2.2 R850 R, GS". It has 8 programs: standard and stages 1,2 & 3 for cat and non-cat. Like I said, with a Remus Viper race can
Motorworks (having consulted a manual) reckoned it should be stage 3). It certainly runs much better than standard, but what would be stages 1 and 2 I wonder???
My bike (new when I bought it) does not have a motronic code plug of any colour. I don't know why not, unless it's because it doesn't have a cat.
Re the air funnels, the instructions say "Modify now at last the right air funnel, only the one on the right side. This is very important for more torque and power. If you (sic) looking for the highest peak power, you may cut both funnels, but you get a dip in torque at 4,000rpm". It goes on to say "These made the resonance asymetric. You will find these asymetric funnels by most of modern engines today. eg Honda VTR 1,000". What they mean (I think) is that you should only cut the rhs trumpet.
Motorworks reckon you shouldn't bother unless you are racing as there's a loss of mid-range. So I haven't touched mine. I've never looked to see how much protudes into the airbox.
It's all a bit of a mystery to me.......
Cheers
Bullcroft