Re: Breathing Easier...MAF and CAT Feedback
you can run no cats with downstream sims with no problem or check engine light .A flowmaster muffler has bafles and produces back preasurs . you will have no problem if you have a good stock mass air flow sensor and a good (un restricted cat,or no cat with a downstream sim . How ever it is a fed law that you have a cat . I recomend Carsound/Magnaflow hp cats .
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