This one is designed with the pioneering FCD design technology, which: A. Lets the pleated filter element follow the contour of the airbox precisely. B. Removes the dead spots that cause turbulence and cut power. C. Increases the air flow and the filtration efficiency, making use of the greater part of the filter's surface The filter is designed to replace the factory filter with no modification at all. Fitting the filter is very easy, you can simply follow the instructions in the SYM manual and check the fitting information written on the DNA filter. The filter has a perfect airtight seal thanks to the high-quality EVA gasket, which is cut precisely and fitted at the factory, so that fitting the filter is guaranteed to be trouble-free. The filter's efficiency is very high and it reaches 98% - 99% (ISO 5011). It can hold a high percentage of dust, which means high filtration efficiency. The filter's air flow is high, reaching +23.98% more than the factory filter. - Factory filter air flow: 88.73 CFM (Cubic feet per minute) @1,5”H2O corrected @ 25degrees Celsius - DNA filter air flow: 110.00 CFM (Cubic feet per minute) @1,5”H2O corrected @ 25degrees Celsius The filter is designed for Road & Off-Road use.