Air Filters & Intakes. Air Filter & Intakes. Electric Traps with Glue. Royal Enfield Hunter 350 (22-24) DNA Air Filter R-RE35N21-01. OEM Air Filter Part Number: 1570250. DNA replacement air filters are designed to increase hp and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. They offer bigger air-flow, with almost 99% filtering efficiency. For the ROYAL ENFIELD CLASSIC 350 22′ model, only the R-RE35N21-01 filter is compatible and not the TC-RE35N21-S2 or R-RE35N21-S2-COMBO. OEM Air Filter Air Flow : 83.00 CFM. DNA Air Filter Air Flow : 87.00 CFM. DNA Increased Air Flow : +4.82%. DNA Filtering Efficiency : 98-99%. This filter features DNA®’s Round Design. Installation of this new DNA Air filter is very easy; simply follow the installation instructions included in the workshop manual. The filtering efficiency is extremely high at 98-99% filtering efficiency (ISO 5011), with 4 layers of DNA® Cotton. The flow of this new DNA filter is +4.82% more than the stock filter! This DNA® filter is designed as a High Flow Air filter for:’Road use’. 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 hold 98 – 99 grams, this applies even to fine dirt as small as 5 microns. The Anatomy of a DNA High Performance Filter. This is what Power is made of! A DNA High Performance Filter is a high quality, next generation multilayer cotton gauze, flameproof, oil impregnated air filter. 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%. 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. 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”. This feature allows the edge to be an active part of the filtering media. Instead of a “dead” inactive area as our competitors is. The result is a unified high air flow of the filter. The only drawback of this design is that the media is very sensitive during production before molding and must be handled with extreme care, increasing the production cost. 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. The flow of the filter remains unchanged even under extreme rainy conditions with high humidity. (We have seen many competitors’ filters transformed into a “milky mess” when it rains, severely reducing the performance of the engine). The oil has low viscosity, plus very high temperature resistance and stability. It will uniformly spread and stay on the filter regardless the temperature. Additionaly, it is UV resistant and easily soluble to assist cleaning the filter. 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. 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! 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! DNA Test & Results. The DNA Flow and Dyno Tests. We test every single filter. The DNA Air Flow Tests. For the air flow tests, we use the most advanced flow bench available today. The ROTRONICS FlowScan, is a totally computerized flow bench that measures. Mass of the air. Flow of the air. Temperature of the air. Speed of the air at various points (Pitot tubes). Absolute humidity of the air. The complete procedure is automated and computer controlled, eliminating human errors. 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. If we anticipate a longer lead time, it will be noted in the item description. For customers that need their parts urgently we offer UPS and DHL Courier Service. UPS and DHL are using their global network to deliver on time for your needs the products ordered. This service is optional and it comes with an extra charge. Please note that, in this case, you will be accepting responsibility if anything were to happen to the package. Required by your country for importing consumer goods. In the event of a defect, these are your exclusive remedies. Such benefits may include additional warranties or rights relating to the performance of this product and remedies applicable in the event of a defect. Sole and Exclusive Remedy. RETURN OF NON-DEFECTIVE PRODUCTS. Thus, we offer the option to our customers to return even non defective products. Specifically, the item should not have been unpacked (apart from trying it of course), scratched, broken or painted. Also the item must have its original box. The return of a non-defective product can only be done once. This credit balance can be used in any new order for the customer wishes. In case you want to cancel your order, please keep in mind that the cancellation will be accepted within 2 hour of the order completion. Beyond that point no cancellation will be accepted. Once we receive and inspect the product, we will credit your account. Please allow 5-7 days for a credit to appear on your account. There is nothing to worry about. 9:00-23:00 (GMT+2). 12 Gateway mews – N11 2UT – London – United Kingdom. TPL IKE, is a Greek Company based in Patras established by a team of engineers whose sole goal was bringing high-quality shopping experience to any enthusiast who visits us online. Our team comprises of talented and committed engineers with wide technological expertise and experience in the motorsports industry. We hope our friendly and fair customer approach differentiates us from the competition out there. For us, the customer always comes first and we always do our best to make sure that each customer has an experience which is exemplary of our brand. Our principles of offering top products, quality, service and rapid availability kept us going all these years. Ethnomartyron 40 – 26 333 – Patras – Greece.