DNA PERFORMANCE AIR FILTER – APRILIA RS660 2020-24. The filtering efficiency is extremely high at 98-99% filtering efficiency (ISO 5011), with 4 layers of DNA® Cotton. This DNA filter is designed to be”spark safe” for racing use on highly tuned engines. The flow of this new DNA filter is +36.70% more than the stock filter! DNA air filter flow: 149.00 CFM APRILIA stock filter’s flow: 109.00 CFM This DNA High performance air filter is a high quality, next generation, multi-layer cotton gauze, oil impregnated air filter that NEVER needs replacing. Design & Manufacture The filter media is made of 4 layers of high quality surgical cotton gauze sandwiched between two layers of epoxy coated marine grade aluminum wire mesh pleated by state of the art electronically controlled machines to assure a very high quality of filtration media. The result of the special design and the hi-tech manufacturing process is a filtration media that has very high flow rates, low restriction, superior dust holding capability and smoothens out the air flow stream. Special Oil Oil that is used to impregnate the cotton is a very special grade developed by the DNA R&D department after intense testing and produced by one of the world’s best oil companies. This special oil is a very critical part of the filter and has the capability to produce a static charge to the cotton media and attract the entire dust particles that flow towards the filter, even the very fine ones. The Long Life DNA air filter will last the life of the vehicle. Taking Care of the Filter The DNA Air Filter will serve you for many years and needs very little care using the DNA Service kit. When the filter is dirty or approximately after every 3000 miles, simply follow the cleaning instructions that you can find in the service kit, allow the filter to dry, re-oil and you are ready to use your filter again, like new! DNA air filter flow: 149.00 CFM. APRILIA stock filter’s flow: 109.00 CFM. This DNA High performance air filter is a high quality, next generation, multi-layer cotton gauze, oil impregnated air filter that NEVER needs replacing. The filter media is made of 4 layers of high quality surgical cotton gauze sandwiched between two layers of epoxy coated marine grade aluminum wire mesh pleated by state of the art electronically controlled machines to assure a very high quality of filtration media. Special Oil O il that is uséd to impregnate the cotton is a very special grade developed by the DNA R&D department after intense testing and produced by one of the world’s best oil companies. DNA air filter will last the life of the vehicle. Taking Care of the Filter. The DNA Air Filter will serve you for many years and needs very little care using the. No additional information at this time. You might also like. IXIL Race Xtrem Carbon Full System Yamaha MT-09 / SP 2021-23. IXIL Black Hyperlow Full System Yamaha MT-09 / SP 2021-23. IXIL Black Hyperlow Full System Yamaha XSR 900 2022-23. IXIL Black Full System Low mount – Honda Monkey 125 2018-23.