Duplex rear silencer

Moinsen! With my elk (V70I AWD) a new rear silencer is due. It should become a duplex system, so much is certain, but I would need your advice if a sport exhaust would make sense. The vehicle has no engine tuning and will not get it either. Have already looked at the forum, but have not become very clever. For me there are basically 2 variants: 1. Original rear silencer from the V70I R AWD MJ 2000 or 2. Duplex sport exhaust Does anyone have experience with the original silencer? What about the durability? Or is a sports exhaust system more useful? Advantages I have found out so far while durability through stainless steel and better discharge of the exhaust gases. Disadvantage, possibly too loud sound. (Would it be rather discreet and unobtrusive) How does both systems look like with the registration? ABE have the least. Rejoice about tips and hints. Greeting from the Baltic Sea.