Magnaflow Competition Axle back Exhaust System 2018-2019 Mustang GT 5.0L Give your 2018-2019 Mustang the sound and performance it deserves with Magnaflow's NEW Competition Axle back exhaust system! This all stainless steel catback gives you a deep throaty classic hot rod sound. Improved air flow with high flow... MSRP: Was: Now: $1,516.00