Thanks for the feedback. I thought the original air filter was adequate for a slight increase in the bikes performance? Would an aftermarket one make much of a difference? If it works better at a lower rpm range then I may try one. Im not really a red line man myself but would like to get a bit more out of it if possible.
Without some time on a dyno, its not possible robustly answer that....you wastes.....correction....pays yer money and takes yer choice.
Its a relatively cheap item compared to the other mods...so why not?
Your derestricting the outlet so why not the inlet?
The real truth is if it makes it faster in your mind then its worth it.
This is the wrong bike for chasing power.....but a little less weeziness at the upper ranges would be nice........
Look at this way....improving the breathing the a bit, shaving a little weight off...means that you need not worry about the effects of a big hearty fry up and a chunk of cake slowing you down on a good days ride out.
Though...and this sterotyping the GS rider a bit.....losing a few rider pounds could be a cheaper and easier way to unburden the bike...

(he says with a 30" waist).
I suppose...if I'd spent the best part of £400 buying an air filter, y piece and end can, I think I'd have wasted my money...they came separately with mine when I bought it...a better investment would be a set of 2nd hand metal panniers rather than the useless BMW pretty plastic jobs.
Ironically, Ive bought the XIED to cure the problems that I think were created by the derestriction.
