2004 Chevrolet Corvette Owner's Manual - Page 260

Engine Air Cleaner/Filter See Engine Compartment Overview on page 5-12 for location of the engine air cleaner/filter. How to Inspect the Engine Air Cleaner/Filter To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the filter, do the following: When to Inspect the Engine Air Cleaner/Filter Inspect the air cleaner/filter at every oil change and replace at the first oil change after 25,000 miles (40 000 km). 1. Pull up on the clips on each side to release the assembly. 5-18