Are you planning on fitting an aftermarket manifold at any point? If so I’d highly recommend the TD resonated or super resonated system. On the factory manifold the non-resonated Cobra is fine (all be it a bit raspy) but if you go for a primary decat then it’s absurdly loud. Tbh even the resonated Cobra cat back is to loud if you do a lot of motorway driving, you get a really nasty resonance at around 3k rpm which becomes quite unpleasant over time.