DNA Air Filter | Installation and Review | Royal Enfield Classic 350 

Thank you Marc! Very nice and useful video! I will make the same mod to my Classic 350. Happy 2024 🎉

Hi watched your video again as I’ve just bought the DNA filter for my classic 350 , it was expensive but worth it , i watched just to make sure I know how to fit it and you said it’s easy. Your bike definitely had a deeper sound and more raspy thankyou 👍🏍️

With the new filter, turning the throttle sounds like a growling tiger.... Love it!

The very first modification I made on my bike. The throttle response is much much better in my opinion. Thanks for posting, Marc - and a Happy New Year to You.

Great video, thanks for the infos 👍🏻👍🏻

The best modification for any Royal Enfield bike, excellent video 👍

I found exactly the same result. Worth every penny. 👍😊

Good modification for the Classic 350

The sound is definitely better than before ❤

I may make the same upgrade to my little Hunter, thanks for sharing!

Nice and useful video, keep it up Marc 😍

Good vid Marc. First thing I did on my 350 classic . Bit noisy but In my opinion has made the bike breath way better, and as a plus Its worked out that the cleaning kit will service the filter twice if carefully used. Which is cheaper than buying two new OM filters. So for me its been a win win. Happy New year mate. Lee🍻

waiting for my own to arrive :) your glowing review has set my mind at ease.

Thanks for this review Marc. I read a lot about people fitting the DNA filter and saying that it didn't really make any difference other than the noise increasing. I feel that you always give an honest opinion in your videos and trust what you say, so I bought one and fitted it to my Bullet 350 yesterday. Got a chance to try it today (it rained all day yesterday) and it makes such a difference! The throttle response is much snappier and the engine feels a lot smoother. The extra growl from the intake noise is nice too. I'm going to add the Hitchcock's decat pipe next month as well to get that air flowing nicely.

Thx for vid, filter is waiting for install now 👍

Hallo! Wieder ein informatives Video! Werde den Filter bei meiner Classic auch installieren. Gruß Erwin

Marc, now the Hunter is a true CLASSIC!! I think, it breathes more, so running better, leading to an overall engine life extension! And of course, a better, classic sound! (P.S. don't forget to wear your ear plugs).

Excelentes videos amigo!!! ✌🏻 Espero en el futuro puedas hacer alguna reseña sobre si hay algun cambio en el consumo de combustible con el Filtro DNA. En una semana llega mi nueva motocicleta Classic 350 green halycon, estoy muy emocionado. Saludos desde Monterrey, México!!! 🇲🇽

I will definitely do this upgrade to my Classic 350. You can notice the difference in sound and performance. 👍

Thanks for the video

If you are installing a DNA filter and better airbox, you need a straight through exhaust as well to get all the benefits. More air comes in through DNA filter, so you need straight through exhaust so gasses escape quicker.

It definitely pulls harder with the Stage 2. One thing that i noticed immediately was the significant improvement to throttle response and touchiness. Killed a lot of dead spots on my classic and got rid of the laggy response. If you have a temp gun, check the heat coming from that header pipe. If it's blistering hot i would immediately get a Fuelx lite. I showed in my series just how much that device changes the temps from the exhaust alone. Near 400F to 250F (but i have a full exhaust on mine)

I have ordered mine from Hitchcock and the gentleman did advice me to ride the bike for 15-20 minutes and go through gears instead of leaving idle so ecu can reprogram itself. Also if anyone is adding a decat pipe and silencer the ecu can cope but if cams are changed then need fuel x! 👍🏽

The word that comes to mind is "Sonorous"

Do you know, you are the first bloke to give a sensible opinion of this air filter. For the sake of £94 in the UK, the DNA isn't worth bothering with for micro seconds and extra noise. I think you will find the FuelX has the same end findings. It may reduce the temperature but not worth invalidating warrantees. My only real criticism is you performed the tests in the wrong temperature conditions i.e freezing cold day rather than normal temperatures. I am pleased I have same a few hundred quid for a change in noise and no significant benefits. My bike doesn't have any engine bumps or lumps in its performance from starting to stopping. The 15 minutes idling is a load of rubbish to reprogram. Information is from a dealership who fitted one of these FuelX kits.

Hello Mark. Happy New Year 😊 Which camera and mic set up did you use when you did this road test ?You can hear your voice and the bike very clearly !

Hey @Marc.Stones! Thank you so much for this video. I got inspired and did the same installation. However, my only concern is, can I ride my bike without any concern if I do not install the FuelX and a decat pipe?

How best is this when compared with bmc and knn filters cuz the materials usuage is pretty much similar.

Hii.. after installation of new DNA air filter any effect in engine like warranty ect..or in piston or internal parts of engine?

Hört sich schon mal gut an, habe den bei meiner 500er montiert konnte aber wetterbedingt noch nicht fahren. Mich würde mal interessieren welche Jacke du anhast und wo du sie gekauft hast. Gruß Frank

Thankyou for your reply, the engine light coming on is that anything to worry about?

You should also get the alternative pipe to eliminate the cat from the exhaust.

RE35N21-01 is this DNA air filter for bronze chrome classic ?

Why does RE put a governor on their bikes and does anyone know how to remove it? I would love one.

I wonder if simply changing the cover and retaining the paper filter would also improve the sound/ throttle response?

Can you please do this test again without paper cover on air filter ???

sir can we do this modification with keeping the stock silencer, I mean does it harms the engine in any sought? like if keep it without any tuning or something, just by changing the air filter

Ist dieser Luftfilter mit dem neuen Lufteinlass in Deutschland so legal?

Hey Marc just have one question does the filter cause any changes in fuel efficiency/milage?

Does the new seat feel any better now you've ridden on it a bit more?

hey wo hast du das baby bestellt?

Doing these modifications does it put strain on the engine at all ?

What about fuel economy is it the same ?

Heard the after market filter dropped the milage. Just wanna know if the fuel consumption is noticeable.

Is there a difference in fuel consumption, too?

Hey can we use this filter in standard 350 royal Enfield

It works. However... it also gave me a motor engine fault😕 Put in the DNA filter and cover (stage 2). Check engine light came on. Reset the error, replaced the standard filter... no more engine light. Changed back to DNA and the check.engine light came back on. Reset the error... and again it came. Changed back to standard, Reset and it stays off. Very disappointed 😞 Anyone an idea what I should do? With DNA filter it runs a lot better... but also gives an error😕

KAAVER GOD ALMIGHTY 🙏😊

hi I assume you're german, I live in the netherlands. I was wondering if this is actually street legal?

Dna filter and fuelx do not do anything, without proper engine tune. The engine only uses data from lambda sensors when you idel and are steady on the throttle, and adjust fueling acording to that to lower the emisions, the second you open the throttle it uses pre determined values that are fixed in the map, and then switches back to lambda as the throtle calms. So without real remaping, no filter, exaust, fuelx does not do anything. Filter and exaust changes the sound and fuelx increases fueling when computer is using the data from the lambda sensor so there is les jerkines and stall when acelerating. Been there used it all, not worth the money.

"HIGH PERFORMANCE FILTERS" 🧐 I've seen a lot of videos about changing the air filter, they all say the performance will improve. But no one could measure or calculate, only words, only promises.....How much percet performance was increased exactly?