KTM 690 under-seat tank...

[Xpat]

I read somewhere that switching to this filter setup will change the characteristics of the engine?

Something about loosing some punch in the low end...

I don't know about that, but I'm pretty sure that moving to this set-up (i.e. eliminating airbox) will require remapping of the engine. Even using those Rally Raid filters that just replace top of the airbox require remap.

[Rough Rider]

The rally raid filters fit on top of the airbox. This tank replaces the entire airbox.

[Bill the Bong]

I think you will need a ram tube to enhance torque at low RPM.  The stock airbox actually incorporates one.  First saw it when I received a warranty replacement airbox in 2011.

[Gwilliams]

Please keep me in the loop - I want to get rid of the rally raid style tanks Gavin Williams cell number 0825513263

[zebra - Flying Brick]

Please keep me in the loop - I want to get rid of the rally raid style tanks Gavin Williams cell number 0825513263

noted, we will keep you in the loop, awaiting the finishing off of the Husky tanks, then will bring in both KTM and Husky under-seat tanks.
Cheers
Chris & Team

[Amsterdam]

Came across a thread that discusses the air filter for the EVO 2 kit.  Slightly different application but same filter.  Thought it might be of interest in this discussion.

[aka.Goliath]

Came across a thread that discusses the air filter for the EVO 2 kit.  Slightly different application but same filter.  Thought it might be of interest in this discussion.

I may be wrong here but it looks like they're referring to the filter that goes into the original air box. This kit will replace the entire air box and you use pod filters instead. Unfortunately after my recent trip I won't be going this direction as I crossed many rivers with a few of them deep enough to have water flow quite far over my front wheel estimating them 60-70cm deep. I also drowned my bike when I went swimming in the last one of the trip - but that's got nothing to do with the air box/filter I just remember the entire air box filled with water to the brim before it drained out

Edit- I now see I was wrong it is a pod filter. Nonetheless I don't feel comfortable with that setup for the riding I do.