Hey, I've heard you guys talking about Borla but none of you ever posted the specs of it on how much power it'll improve our crossfires! I'm stuck with my magnaflow, because I love the sound it makes and maybe some power increase (???). Until such time that a real catback or dual exhaust out there will come out and have proof in the increase of power, then I'll switch to it. As of this time we are only talking about how much better sounding our exhaust / muffler sounds from Borla, Magnaflow and Lorinser with no documented increase in power posted in this forum. It'll be good if one will be available.