-   ZZPerformance is proud to offer the industries highest performing air filters. By using a deep pleat design we were able to outflow K&N and create a filter that lasts longer while making more horsepower. We flowed our filter vs the most common K&N filter in each size and were able to beat K&N’s numbers every time. The filter's outlet has an internal velocity stack to improve air flow into the intake tube. Each filter is embossed with ZZP's logo on the end and includes a stainless worm drive clamp. The below list shows the size and which intake each filter comes standard with. They can be used in custom applications, just chose the correct filter for your application!Our filters are oiled and should be cleaned regularly to maintain performance. We recommend using the air filter cleaning kit found here. Models:1 - Cone style, 6" base, 4 3/4" end, 9" length, 4" inlet (Most commonly used in ZZP's 3800 (v6) Cold Air Intake)2 - Cone style, 6" base, 4 5/8" top, 7 1/4" length, 3 1/4" inlet (Most commonly used in ZZP's Cobalt Cold Air Intake for the LSJ and Cobalt Fenderwell Intake for the LNF)3 - Cone style, 6" base, 4 5/8" top, 5 1/8" length, 3" inlet (Most commonly used in ZZP's Sonic and Cruze High Flow Intake, ZZP Entry Level Turbo Kit, ATS CAI, Camaro CAI, ATS-V CAI, )4 - Cone style, 4 5/8" base, 4 1/4" top, 5" length, 4" inlet (Most commonly used in ZZP's Fenderwell Intake for the 3800 v6)5 - Cone style, 4 3/4" base, 4 3/4" top, 7 1/2" length, 3" inlet (Used in our Slingshot cold air intake and Slingshot turbo kit). 6 - Cone style, 4 1/2" base, 4 1/2" top, 8 3/4" length, 3" inlet (Used in our ZZP HHR SS high flow intake).  7 - Cone style, 6" base, 4 3/4" top, 7 3/8" length, 3 1/2" inlet (Used in our LSJ and LNF complete turbo kit, S257 swaps).8 - Cone style, 4 5/8" base, 3 1/2" top, 8 1/2" length, 3 1/2" inlet (Used in our 3800 turbo kits).9 - Cone style, 4 1/2" base, 3 1/2" top, 6 1/2" length, 3" inlet (Used in our 2.2/2.4 Supercharger kit).