K&N Filter Cleaning Kit, A six-step maintenance system designed to recharge any K&N Filtercharger® Air Filter. Restores air flow efficiency so your Filtercharger¨ performs like new! Includes: 6.5 oz. Spray Oil, 12
Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2011-2019 Chrysler/Dodge V6/V8 (Charger, Challenger, 300), 33-2460 : Automotive
Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 8HP: Compatible with 3.6L, V6, 2011-2019 Dodge/Chrysler (Challenger, Charger, 300) 63-1564 : Everything Else