Re: exhaust
i have a 08 avy with 5.3L and has the v4 mode; i have the corsa (sport) exhaust; it's not cheap (or maybe i'm just cheap), all stainless with cool tip, very nice, love it, loud at WOT, nice low rumble on the highway, no droning like the flow masters; if you want a quieter one get the touring... i heard that's what comes in the escalades... but don't quote me on that.
it's still expensive to me, but if i had to i'd do it again, that's how much i love it!!
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