Quick view Flowmaster Flowmaster 99-04 Mustang V6 Catback Exhaust Compare $683.95 Flowmaster catback exhaust system for 1999-2004 Ford Mustang LX 3.8L features a flanged Y-pipe and hardware, Super 40 series mufflers, 2.50 inch outlet, logo embossed stainless exhaust tips... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List