No Toil makes some of the best air filters in the industry and their Twin Stage air filter provides your motorcycle or ATV with the best airflow available with industry-leading performance and durability to handle even the most extreme conditions. No Toil constructed the Twin Stage air filter with two pore sizes to trap more particles to protect your motorcycle or ATV's engine. A fully open cell structure allows the air filter to push more air into your intake to boost horsepower and performance. Designed to deliver unmatched durability, the air filter is constructed to last longer in racing conditions. No Toil makes all of their Twin Stage air filters by hand and uses top quality glue and materials to ensure that each filter will offer all of the quality protection and performance that No Toil is known for. No Toil offers a one year warranty on their Twin Stage air filters so you can buy with confidence.