It's different on a diesel, Gaz, as you can't get the same noise out of them, with a bespoke exhaust system, as you can with a petrol car. Plus, Mercs are engineered to be mega-quiet, as they're seen as a more 'sedate' kind of car, certainly in stock form.
Therefore, I got away with removing the back boxes on the Brabster, so the exhaust system is completely straight-through, without it being too noisy. It just produces a rather nice 'burble', when the engine's ticking over, and a deep, throaty roar when you accelerate!
It's also had a DPF delete, but not an EGR one (as that would make it smelly) - and that, in conjunction with the sports remap and straight-through quad SS exhaust system, made a BIG difference to the power that the engine produces. A further improvement again was achieved when I had the turbo fully refurbished, with new bearings fitted, etc, and the injectors professionally cleaned and serviced.
It's a total rocket ship now!!
Nice one - keep it up! You've had it Terracleaned too, haven't you?
Lol - quality... Fair enough, I was just thinking of permanently sealing the system (excluding the boxes) from rust, which would be the case if you had SS pipes fitted. My performance SS exhaust system is from Longlife:
https://www.longlife.co.uk/performance
Marco.