Feature
●This Stage 2 kit is designed to replace the stock plastic air box top cover and OEM air filter.
●Included in the Stage 2 kit you will find all the necessary parts to install the Stage 2.
●Special stainless steel bracket for mounting the stock ECU is supplied and also zip ties to mount and tie down your ECU are supplied.
●Stock air box with OEM air filter & OEM cover flow : 94.20 CFM (Cubic feet per minute) @1,5”H2O corrected @ 25degrees Celsius.
●This DNA Stage 2 kit is designed as a High Flow product for: ‘Road & Race use’.
Description
Yamaha MT - 09 / SP / TRACER 9 / GT Series (21-23) - DNA Air Filter Stage 2 P-Y9N21-S2
- This filter features DNA’s Stage 2 kit eliminates the OEM intake snorkel of YAMAHA models and offers higher performance and better intake sound.
- This Stage 2 kit is designed to replace the stock plastic air box top cover and OEM air filter. With the use of P-Y9N21-S2 there is no need to use the OEM air filter or DNA P-Y9N21-01.
- Included in the Stage 2 kit you will find all the necessary parts to install the Stage 2. Special stainless steel bracket for mounting the stock ECU is supplied and also zip ties to mount and tie down your ECU are supplied.
- The airflow of this new DNA Stage 2 air filteris +54.78% more than the stock YAMAHA air box with OEM air filter & stock air box cover applied!
- This DNA Stage 2 kit is designed as a High Flow product for: ‘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 Test & Results
We test every single filter.
The DNA Dyno Tests
For the Dyno Tests, 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 Tests
For the air flow tests, we use the most advanced flow bench available today.
The Anatomy of a DNA High Performance Filter
1. The DNA Cotton
This very special cotton is designed by DNAs 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 DNAs 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 manufacture 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!
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%.
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.
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. |
