not sure but those that got in on the group buy for the invidia n1 are laughing now, i should have got in on that action but was afraid it may be too loud.
i prefer off the shelf systems like magnex (have one on the fiesta cost £280 from demontweeks in 2002 so lasted 19 years and still looks mint), milltek, etc. they are stainless steel and usually good on price.
powerflow dealers usually sort out catbacks for 300 ish too.
i like the sound of the original exhaust, its quiet when pootling around and even in lift you can hear the engine rather than the exhaust.
when the time comes and i need a replacement i will get one that is a replication of the original one but in stainless.
dont get me wrong im not knocking the quality of it, but for the cost i paid £280 inc vat + £15 fitting for my fiestas magnex catback system and its served me for 21 years and still going strong. i ask myself what more would a 800 quid exhaust have offered me over my 280 quid one?
pics are from a wheel alignment few years back.