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Product Description

Stage 2 Husqvarna/KTM 125-200-250-390 - DNA Air Filter P-KT3N20-S2

  • This new Stage 2 Air Filter features DNA’s advanced FCd and designed to work exclusively with the DNA stock replacement air filter. Correctly used it will increase the airflow, torque and power of the engine.
  • Installation info are included with this new DNA Stage 2 Air Filter. Fuel injection recalibration is suggested but NOT necessary.
  • The filtering efficiency of the assembly with the DNA Stage 1 Air Filter (P-KT3N18-0R) is extremely high at 98-99% filtering efficiency (ISO 5011).
  • The airflow of this new DNA Stage2 Air Filter (P-KT3N20-S2) combined ALWAYS with the DNA Stage 1 Air Filter (P-KT3N18-0R) is +95.99% over the KTM / HUSQVARNA stock application!
  • Stock air box with DNA S1 & S2 air filter flow: 73.30 CFM(Cubic feet per minute) @1.5” H2O corrected @ 25 degrees Celsius.
  • Stock air box with KTM/HUSQVARNA stock paper filter air flow: 37.40CFM (Cubic feet per minute) @1,5” H2O corrected @ 25degrees Celsius.
  • This DNA Stage 2 Air Filter is designed for: ‘Road, Off Road & Race use'.

The ROTRONICS FlowScan, is a totally computerized flow bench that measures:

  • Mass of the air,
  • Flow of the air,
  • Temperature of the air,
  • Absolute air pressure,
  • Differential air pressure,
  • Speed of the air at various points (Pitot tubes),
  • Absolute humidity of the air.

DNA Trials & Results

The DNA Dyno Trials

For the Dyno Trials, we use the industry standard Dynojet chassis dyno equipped with eddy current load control, Dynojet 250LC. Our dyno cell is equipped with a variable flow air cooling system, designed to precisely simulate real world conditions.

The DNA Air Flow Trials

For the air flow trials, we use the most advanced flow bench.

The Anatomy of a DNA High Performance Filter

1. The DNA Cotton

This very special cotton is designed by DNA's R&D engineers for High Performance filtering purposes. The basic media is a non woven surgical cotton gauze with a modified TEX & THREAD, with extremely high strength of break. This unique cotton media, actually is a \"hairy hybrid\" featuring extremely high air flow rates and excellent filtering efficiency that exceeds 98%.

2. The DNA Wire Mesh

The DNA wire mesh, is a very special material designed by DNA's R&D engineers. Made out of marine grade 5000 series Aluminum, features a unique \"wrap & fill\" and precisely calculated wire diameter, to have the necessary high tensile strength and elasticity to last a lifetime. Additionaly it is protected against oxidation by a fine layer of epoxy coating. The DNA wire mesh is designed to perfectly support the cotton layers and at the same time not restrict the air flow.

3. The DNA Filtering Media

The DNA Filtering Media consists of 4 layers of DNA cotton, sandwiched between 2 layers of DNA wire mesh, precisely pleated all together. We produce a very wide selection of media, starting from 8 mm to 50 mm height, with an infinite size of \"Pitch\". Actually we can choose from an unlimited combination of DNA Filtering Media when designing a new filter. Another important feature of our filtering media is the \"Large pleat edge radius\".

4. The DNA Filter Oil

This is an extremely important part of the DNA filter. As soon as the DNA Oil is added to the cotton media, the cotton is \"static charged\" and transformed into an unbeatable filtering material! To achieve this fantastic result we have developed a unique air filter oil formula. The specifications of our DNA Air Filter Oil are as impressive as our filters are. Humidity will not attack the oil, even if the filter is submersed in water.

5. The DNA PU (elastomer polyurethane)

The DNA PU is a thixotropic material, that we use to develop the high quality \"frame\" of the filter, with unique material specifications. High tensile strength with the necessary hardness for each application, high temperature, fuel and oil resistance, the DNA PU will keep the filtering media in place, it will absorb vibration and will last for a life-time.

6. The DNA EVA (Ethylene Vinyl Acetate polymer) closed cell seals

We use only high quality EVA seals. Precisely cut and factory installed (glued) using industrial grade adhesive, guaranty a perfect airtight sealing and trouble free filter installation for the user. The DNA EVA seals and the industrial adhesive are fuel, oil and temperature resistant. Additionally the DNA cleaner will not affect them when the filter is cleaned!

7. The DNA FCd design technology

The DNA FCd design or \"Welcome to the Future\"! At least 20% and up to 80% more filtration area, using DNA FCd technology is common. The unique revolutionary design, an innovation by DNA, allows the pleated filtering media to follow precisely the air box contour, regardless the complexity of the shape, seriously increasing air flow. Taking advantage of the complete footprint of the air box, we eliminate \"dead spots\" that rob power. If the area is there why not use it!

FAQs About DNA Air Filters

What is DNA FCd design?

The DNA FCd design is an innovation by DNA. It allows the pleated filtering media to follow precisely the air box contour, regardless the complexity of the shape. Using the complete footprint of the air box, we eliminate \"dead spots\" that rob power and at the same time seriously increase air flow. Using DNA FCd technology, at least 20% and up to 80% more filtration area is common!

  • Can I change my OEM filter with a DNA without changing fueling?

In cases the air flow of the DNA Filter is extremely high we include with the filter special instructions.

Does the DNA filter provide the same level of protection as the OEM filter?

Yes and even better, the DNA filters have a filtering efficiency of minimum 98% (ISO 5011 test). Good quality OEM paper filters are from 97% to 99% and the foam filters are from 92% to 97%.

  • What is filtering efficiency?

Filtering efficiency is the amount of \"dirt\" the filter can maintain (stop) and protect the engine efficiently. For example, the DNA Filter for every 100 grams of dirt that it will receive, it will \"trap\" 98-99 grams, and this applies even to fine dirt as small as 5 microns.

How often do I have to clean my DNA filter?

The servicing intervals depend on the environment that the vehicle is used. Once a year or every 15.000 to 30.000 km is suggested, to keep your DNA filter in top condition. An easy way to check if the filter needs cleaning, is to see if the wire mesh that that is on the dirty side, is visible.

  • Can I use gasoline, thinners or compressed air to clean my DNA filter?

Absolutely no! You must treat your DNA filter as delicate textile. First of all read the cleaning instructions, then follow them carefully. Every DNA filter packaging & the DNA service products include detailed cleaning instructions.

Item Details

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DNA Stage 2 High Performance Air Filter Compatible for Husqvarna Svartpilen 401 (18-23) PN: P-KT3N20-S2

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