Mabey there should be some ripe of membership with a small donation at the bottom of the hill with a code to get in and Mabey a-holes like that will go somewhere else
My brother an I had identical cf 7s I put a black magic can on and he put a mbrp he had problems a bog at 5-6500 rpm he put the stock can back on no probs apparently mbrp cans are tested at sea level not 2500 ft and the 7s need back pressure .check the stock can if there's anything left inside...