DNA Stage 2 Air Box Filter Cover for KTM 690 SMC / Enduro and Husqvarna 701 Supermoto / Enduro features DNA's advanced FCd (Full Contour design). Features a specially made laser cut supporting frame supoorting maximum flow with a very high filtering efficiency near 99% (ISO 5011).The flow of this new DNA Stage 2 Air Box Filter Cover (DNA-TC-KT6SM09-S2) combined with the DNA Stage 1 Air Filter (DNA-R-KT6SM16-OR) is very high, 122.36% more than the KTM stock application. DNA S1 & S2 Fcd air filter flow: 248.60 CFM (Cubic feet per minute) @10"H2O corrected @ 25 degrees Celsius. KTM stock paper filter: 111.80 CFM (Cubic feet per minute) @10"H2O corrected @ 25 degrees Celsius. Kit doesn't include Stage 1 filter (sold separately). TECHNICAL FEATURES Drop-In Hassle Free Installation (simply follow the information in the workshop manual) Lifetime Warranty FITS KTM 690 ENDURO (2008+) KTM 690 SMC R / ABS (2012+) KTM 690 SMC (2008-2011) HUSQVARNA 701 ENDURO (2016+) HUSQVARNA 701 SUPERMOTO (2016+)