Fitted a Double S cat back stainless exhaust system after cutting the remains of the old system off with an angle grinder.
Impressed with the fit and overall quality, the pipe from the centre box back is larger diameter than OEM, a massive 66mm The two rear boxes are much neater than the dustbin sized OEM units. It's very quiet and maybe I'm imagining it but the turbo seems to get going at lower revs.
A 500 kilometre trip coming up on Saturday to the south of France and if the bloody thing is still going, a 500Km return the following week
No doubt the slightly larger bore and the fact it isn't caked in years of poo allow the gases to flow better allowing the turbo to spool up a bit quicker and not fight a back pressure!