Audi S4 Gutted Cats Problem & Exhaust Sound Clips

My buddy got his cats gutted on his tuned Audi S4...now a few months later he ran into some issues. Let's see what's going on and get some exhaust sound clips! Check out https://drivendistrict.com/ for parts and merch! Subscribe for more and follow on Instagram:   / driven.district  

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#s4 #audis4 #exhaust