Diamond

dude I dont really care, you or the OP has the exhaust and I do not as it showed to lose power onh multiple dynoes I did and saw in front of me over stock exhaust-so if you like it great! I am just sharing for others that see this that it had multiple dynos losing hp and you can see in this test that the intake made no difference really and then right away they put the exhaust on and that dropped 8 hp-your right its a 3 series but you can extrapolate from that since same engine, same exhaust manifold, same intake manifold, same cats etc-

but enjoy the loss!