[quickv3]

Ok so here is my question....Basically I am looking at doing an exhaust system on my E46 M3 coupe but I want it to remain CA smog legal and not throw any CEL's. I have looked at super sprint, fab speed, agency, milltek and many others, and to be honest, and to be honest I am leaning toward either the milltek cat-back system or the Agency power axle-back system. Does/has anyone tried or know anyone who has had either of these exhaust systems on either their E46 or E90/92 M3? If so any feedback would be appreciated. Thanks guys! Also, please feel free to make or suggest any other systems that you know of that might be good.