Protection: TPU hard-shell knuckle

Pre-cut hole for valve tube

You may need this version if you have aftermarket mounts

and rubber hoses

DNA Air Filters - Air Filter for Royal Enfield Continental GT 535 Efi 13-18 Options:Air Filter Protection: TPU hard-shell knuckleThis New filter features DNA's Round Design. The filtering efficiency is extremely high at 98 99% filtering efficiency, with 4 layers of DNA Cotton. The flow of this DNA filter set is 65. 25% more than the Royal Enfield stock paper filter. DNA air filter flow: 118. 70 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25C. Royal Enfield stock paper filter: 71. 83 CFM (Cubic feet per minute) @1,5"H2O corrected @ 25C. This DNA filter is designed as a High