PC Racing PC155 Flo Stainless Steel Reusable Oil Filter Fits: KTM front tall filter, 400-525 EXC-F/XC-F 00-07, 400-525 SX-F 00-06, 540-690/LC4 92-08, 450/525 XC ATV 08-09, 250 SX-F 05-13 250 XC-F/ XCF-W 07-13, 450/500 EXC/ XC-W 12-13, 450 SX-F F.E. 12, 450 SX-F 13; Polaris Outlaw 450/525 07-13 and more 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