K&N Replacement Unique Round Tapered Air Filter for 06-09 Suzuki LTR450 Quadracer 450 - SU-4506 0 K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with... $83.99 Quick view add to cart Add Wish List