Drilled security wire gaps for racing in canister oil filters.Resin-impregnated filter media offers maximum filtering floor for contaminant elimination.Heavy-duty building.Anti-drainback valve (where applicable) eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown.Traps 99% of harmful contaminants. Originally developed for tense race applications, K&N's Premium Wrench-Off Oil Filter has change into a favourite amongst consumers for its durability and simple removal. Most of our car and marine oil filters come with a 1" nut welded to the highest of the canister so they can be simply wrenched-off with a standard software. To satisfy the calls for of racers, our oil filter has many features over and above the necessities of most vehicles. We use thicker canister walls for added energy and sturdiness which reduces the chance of harm from bathroom toiletse rocks and debris. The drilled gap on the nut provides for safety wire attachment. Our oil filters additionally use a resin impregnated cellulose filter media. This lets in for larger waft prices whereas offering prominent filtration. IF YOU WISH TO CONFIRM THE CHOSEN FILTER IS CORRECT FOR YOUR APPLICATION PLEASE SEE THE CATALOGUE ON WWW.KNFILTERS..