This High Performance Spectre Air Filter features a filter length of 9 1/2 inches and a total length of 10 1/4 inch The base of the element is 6 inches and tapers down to 4 3/4 inches. The filter fits 3 inch, 3.5 inch, and 4 inch air intake tubes using the included adapters. This filter is available in RED only! This filter has a 10 year 100,000 mile warranty, triple chrome plated ends and stainless clamp. We have filter sizes and colors available. If you don't see it please call.