Flowmaster Flow FX Cat-back Exhaust SystemThis Flowmaster Flow FX Cat back exhaust system is designed for the 2019* 2026 GM Silverado Sierra 1500 trucks (*new body style) with 5. 3L engine and factory dual exhaust. This bolt on system is manufactured using durable 409 stainless steel throughout and features a 3. 00 inch inlet pipe leading to a single inlet dual outlet Flow FX straight through muffler for a deep, moderately aggressive sound and maximum performance. Maximum dyno gains of 21 hp
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