The best way to treat carbon buildup is to prevent it, and that's where this Mishimoto Ford Explorer ST catch can kit comes in. This Mishimoto catch can kit diverts blow-by away from the intake and traps it in our catch can. Inside the can, a set of air turbulators and baffles separate fuel, oil, and water vapors from the crankcase gasses and collects them to be drained next time you change your oil. Finally, a sintered bronze filter removes any remaining carbon from the crankcase gases so that only clean air returns to your intake. The Mishimoto Explorer ST catch can kit is a complete bolt-on blow-by solution including direct-fit hoses with quick-disconnect fittings for a hassle-free installation. This kit includes our signature Mishimoto Lifetime Warranty.