14’ Silverado 5.3L AFM muffler delete

Описание к видео 14’ Silverado 5.3L AFM muffler delete

Had my local guy delete my muffler including the AFM (active fuel management) flapper. All cats and the resonator are still on. Hard to hear the actual rev sounds through video. But you can hear those lifters talkin a bit lol GM and their dumb ideas for fuel mileage.. AFM is garbage.

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