Air/Fuel Filters

Both are micron filters rated for different debris sizes, and they work as a pair. The 100-micron filter is the pre-filter, or pump filter, mounted between the gas tank and the pump to catch larger debris before it reaches the fuel pump assembly. The 10-micron filter is the post-filter, an inline filter mounted between the pump and the EFI system to catch fine impurities before they reach the fuel injectors. Running both gives you clean fuel through the whole system.

Serviceable. FiTech inline fuel filters are billet aluminum with a replaceable filter element, so fuel filter replacement means swapping the element, not tossing the whole unit. Work it into your normal maintenance schedule: check the element during a tune-up and replace it when it's dirty. That keeps clean fuel flowing without buying a new filter body every time.

FiTech cone air filters fit LS throttle bodies in 92mm and 102mm sizes, in 6-inch and 9-inch lengths. Match the filter to your throttle body diameter first, then pick the length that clears your hood and engine bay. The 9-inch flows more air where you have the room, and the 6-inch fits tighter spaces.

Yes. FiTech fuel filters handle pump gas and modern fuel blends, including E85 and other aftermarket fuel, the same fuels FiTech EFI systems are built to run. Clean fuel filtration matters even more on ethanol blends, so run both the pre-filter and post-filter and keep the elements fresh.

Yes. Unfiltered fuel is hard on your fuel injectors and pump. A pump filter protects the pump from tank debris, and a post-filter protects the injectors from anything finer. Running quality fuel and keeping the filter element clean is the simplest maintenance you can do to protect engine performance and the EFI system. Contact tech support if you need help matching filters to your fuel system.