K&N Air Filter [Camaro ZL1, CTS V, LT4] PN 33-5059 c7 butterfly We design our carbon parts

We design our carbon parts to flow with the sharp lines of the V-Series styling

While most injectors will run static at high pressure on a test bench

eventually moving at almost the same speed

New ArmorGlide™ skirt coating is the result of testing

CNC machined 4130 zinc plated studs

K&N Air Filter [Camaro ZL1, CTS V, LT4] PN 33-5059 c7 butterfly We design our carbon partsK&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace