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  • B5 S4 FI CAT-BACK EXHAUST SYSTEM

    $1,100.00$1,430.00

    Fast Intentions is proud to present our B5 S4 Cat Back Exhaust System. This Cat Back exhaust system is the premier upgrade for all S4 owners looking to maximize the performance from their 2.7L V6 Bi-Turbo engine. Our exhaust system will enhance the sound that Audi created from the factory by making it smoother, deeper,…