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Stock Airbox

3558 Views 17 Replies 8 Participants Last post by  KrillOill
The 790/890 Adventures have a bad rep for their airboxes, so I installed a pre-filter to help.

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Yes, that's the same per-filter that I have, but did you keep the OEM paper filter as main filtration? I have a No Toil foam in place of OEM. Now I'm wondering which is best or if a washable OEM style filter is better.
I kept the OEM filter because I was planning to take it off-road. I do have a K&N, but I'm hesitant to install it due to KTM's being so sensitive to any dirt entering the intake system.

This guy does some pretty good comparisons.

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Thanks, this confirms my suspicions. I don't need more performance, I'm looking for best filtering for a LONG engine life. I'm going to follow your lead and keep the pre-filter but run the OEM paper.
My riding buddy has a KTM 890 and he asked about air filtration and warranty. Answer: If it isn't made by KTM...it voids the warranty. Aside from removing the snorkel, running the OEM filter should keep me covered for 2 years.
My riding buddy has a KTM 890 and he asked about air filtration and warranty. Answer: If it isn't made by KTM...it voids the warranty. Aside from removing the snorkel, running the OEM filter should keep me covered for 2 years.
KTM sucks when it comes to standing behind their products. My buddy had 13k miles on his 790 and it started blowing blue smoke (burning oil). Took it to the dealer and KTM wouldn't cover anything. Matter of fact, they wouldn't even sell them a complete engine...only individual parts to rebuild it. What kind of crap is that? My guess is, they could blame the dealer for the rebuild if something else happened...hence why they refused to sell them a complete engine. Just my assumption.
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This is why a pre-filter pays for itself. After 5800 miles...on- and off-roading, this is what my pre-filter looks like. The stock OEM filter still looks brand new. Gives me some piece of mind that none of the dirt, sand, debris and crud is making it inside my engine.
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I need one, we've been pulling the stock filters out and shaking the dust, dirt and plant matter out after every ride, lol.
I have the Rottweiler pro air kit with the big oval foam filter. It gave a noticeable increase in both mid range and top end power.

just pulled it out today to give it a clean and although the filter itself was very dirty on the outside, there was no trace of any dust inside the airbox
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I have the Rottweiler pro air kit with the big oval foam filter. It gave a noticeable increase in both mid range and top end power.

just pulled it out today to give it a clean and although the filter itself was very dirty on the outside, there was no trace of any dust inside the airbox
Nice. Definitely money well spent.
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Yep it was about USD$350 and gave more bang for buck horsepower than any other option available.

The bike has the Rottweiler pro airkit, a decat link pipe and slip-on muffler (cheap Chinese copy that looks, sounds and goes awesomely).
No remapping done. Just let the bike idle from cold start for about 15 min (till fans came on). That helps ecu recalibrate to the changed system.
Throttle is buttery smooth too

It has more punch by a significant margin. We did lots of roll-on testing and In every gear it pulls away from my mates KTM 1090 Adventure R, another mate on a new 950 Multistrada and one on a dual clutch Africa Twin.
Tried against a new 1290 Super Adventure R too... not surprisingly lost in all gears. Except... 6th gear under 115kph the Norden did pull away from the 1290 in 6th, all the wayup to about 160 kph and then the 1290 reeled me in. I laughed out loud :LOL:
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Yep it was about USD$350 and gave more bang for buck horsepower than any other option available.

The bike has the Rottweiler pro airkit, a decat link pipe and slip-on muffler (cheap Chinese copy that looks, sounds and goes awesomely).
No remapping done. Just let the bike idle from cold start for about 15 min (till fans came on). That helps ecu recalibrate to the changed system.
Throttle is buttery smooth too

It has more punch by a significant margin. We did lots of roll-on testing and In every gear it pulls away from my mates KTM 1090 Adventure R, another mate on a new 950 Multistrada and one on a dual clutch Africa Twin.
Tried against a new 1290 Super Adventure R too... not surprisingly lost in all gears. Except... 6th gear under 115kph the Norden did pull away from the 1290 in 6th, all the wayup to about 160 kph and then the 1290 reeled me in. I laughed out loud :LOL:
Nice to hear !
So the gains are real ! I've always been a bit doubtful about all these claims.
My Rottweiller intake will be home next week and my Arrow decat+slip-on in about 3, so your comments will prevent me from falling asleep tonight.
Thanks ;):sleep:
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Yep it was about USD$350 and gave more bang for buck horsepower than any other option available.

The bike has the Rottweiler pro airkit, a decat link pipe and slip-on muffler (cheap Chinese copy that looks, sounds and goes awesomely).
No remapping done. Just let the bike idle from cold start for about 15 min (till fans came on). That helps ecu recalibrate to the changed system.
Throttle is buttery smooth too

It has more punch by a significant margin. We did lots of roll-on testing and In every gear it pulls away from my mates KTM 1090 Adventure R, another mate on a new 950 Multistrada and one on a dual clutch Africa Twin.
Tried against a new 1290 Super Adventure R too... not surprisingly lost in all gears. Except... 6th gear under 115kph the Norden did pull away from the 1290 in 6th, all the wayup to about 160 kph and then the 1290 reeled me in. I laughed out loud :LOL:
I was looking at getting the power plate, now I'm leaning on getting the full intake when it's riding season again here. I've got the midpipe (not installed yet) I'm waiting on my dealer to do some warranty work before I give them reasons to not honor the warranty. After that, it's intake and exhaust!
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I was looking at getting the power plate, now I'm leaning on getting the full intake when it's riding season again here. I've got the midpipe (not installed yet) I'm waiting on my dealer to do some warranty work before I give them reasons to not honor the warranty. After that, it's intake and exhaust!
what brand mid pipe did you end up getting? i am thinking arrow.
I was looking at the other name brand ones and then I realized it's just a short piece of exhaust tubing. Being in the welding, pipe and tubing game, I have no idea why they are so expensive, if they were offering them for $50 I might have considered, I ended up with one of the Aliexpress ones, it was about $30 and it's titanium. If that was not an option, I would have made my own from tube.
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I was looking at getting the power plate, now I'm leaning on getting the full intake when it's riding season again here. I've got the midpipe (not installed yet) I'm waiting on my dealer to do some warranty work before I give them reasons to not honor the warranty. After that, it's intake and exhaust!
I wouldn't do the full intake system. I know a couple people now who have dusted there engines with the full Rottweiler intake. The foam filters supplied were not fine enough, and far too small for the amount of air ingested by the big twin. in dusty conditions, they fail. The big problem with the KTM / Norden air box is that they draw air that swirls dust off the tires. What seems to be the answer, to keep dust at bay, is a pre filter (like the power plate), and ensure the edges of the filter is properly greased up. And really watch the filter used, has a soft foam gasket so it will conform to the edge of the air box (OEM filter) There is a couple of big threads talking about the RP full air intake on the ADV rider forum.
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I wouldn't do the full intake system. I know a couple people now who have dusted there engines with the full Rottweiler intake. The foam filters supplied were not fine enough, and far too small for the amount of air ingested by the big twin. in dusty conditions, they fail. The big problem with the KTM / Norden air box is that they draw air that swirls dust off the tires. What seems to be the answer, to keep dust at bay, is a pre filter (like the power plate), and ensure the edges of the filter is properly greased up. And really watch the filter used, has a soft foam gasket so it will conform to the edge of the air box (OEM filter) There is a couple of big threads talking about the RP full air intake on the ADV rider forum.
Interesting, It's really tempting with the HP charts that they show... I wonder if a better filter could fix the issue
I wouldn't do the full intake system. I know a couple people now who have dusted there engines with the full Rottweiler intake. The foam filters supplied were not fine enough, and far too small for the amount of air ingested by the big twin. in dusty conditions, they fail. The big problem with the KTM / Norden air box is that they draw air that swirls dust off the tires. What seems to be the answer, to keep dust at bay, is a pre filter (like the power plate), and ensure the edges of the filter is properly greased up. And really watch the filter used, has a soft foam gasket so it will conform to the edge of the air box (OEM filter) There is a couple of big threads talking about the RP full air intake on the ADV rider forum.
The stock system dusted my intake, when I removed it to put the rottweiler on it was full of dust
The stock system dusted my intake, when I removed it to put the rottweiler on it was full of dust
I'm sure. That's why you still need a pre-filter setup if you plan to go off-road.
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