PC Racing PC167 Flo Stainless Steel Reusable Oil Filter Fits: KTM 350 SX 11-13, 450 SX-F 07-12, 450 XC-F/XCR/EXC/SMR 08-12, 505 SX 07-09, 350 XC-F 12-13, 505 XC-F 08-10, 530 EXC/ XCR/ 08-12, 400/450/530 XC-W 09-12 Made from laser cut, medical grade, 304 stainless steel micronic filter cloth, this filter provides 200 percent more filter area in many cases The Flo stainless filter catches items down to 35 microns, which is about 3 times better than most good paper or brass filters Unlike glued paper filters, the Flo oil filter pleat seam is welded and able to withstand up to 600 degrees This filter maintains consistent flow under all conditions including extreme heat, the presence of water, and cold start ups where paper filters can flow so poorly that they often cause the bypass valve to open and allow unfiltered oil to enter your engine