These Moroso Ford Mustang Cold air induction kits can improve ETs by a full two tenths. Not only will they improve ETs, but you'll notice an increase in horsepower as well--how about 16-20 more horsepower? The air filter not only flows more air, but is washable and reusable. These bolt-in kits replace your stock air induction system without any fabrication, and include a stamped steel plate for rigid filter mounting. They include all necessary installation hardware and easy-to-follow instructions.