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I just order the revised version of corsa extreme w black tips. The 2.75 inch version was throwing back pressure codes. Corsa then revised it w 2.5" pipes to eliminate the back pressure code. I know it will flow better to compensate for the decrease in diameter. But would I b better off refusing shipment on the corsas and ordering magna flow and wrapping them. Sounds like the corsa are taking two steps back and 1.5 forward. What's the diameter of magnaflow, which I loved on the V i just sold. Am I going to lose a few horses w 2.5 inch corsas? I won' drop short of$1400 for cool sound and no drone to lose a thing in HP/TQ. I am going to see if i can find out how the two flow (cfms) vs magnaflow
Thanks
Chubb
Thanks
Chubb