Looks like I'll need to be replacing the exhaust system on my E320 in the near future. I was wondering what everyone elses opinion on the best way forward is. I am torn between a custom made stainless system, matching as near as possible the original for noise, or a genuine MB system. I'm pretty certain either option will cost in the region of £450 and the original will outlast the car probably so the life of the stainless one is a marginal benefit. My concerns over the stainless option (which could have a nicer tail pipe!) are the ability of it to sound refined enough and the impact it would have on insurance as I'm with a mainstream company who may frown on it, even if the only difference is the material it is made of. All opinions welcome.