At State Ave Auto & Muffler, located in Chehalis, WA, we specialize in complete auto repair as well as custom exhaust work. We are locally owned and operated and have been serving the Lewis County area since 1978 & are experienced, knowledgeable with all makes and models of cars and trucks. We have been serving the Lewis County area since 1978 and are experienced and knowledgeable with all makes and models of cars and trucks. Our Services Include: -Complete Auto Repair -Foreign & Domestic -Transmissions -Air Conditioning -Tune-Ups -Brakes -Diagnostics -Engine Work -Custom Exhaust Work and more. Call us today and schedule an appointment to get your vehicle taken care of!