Im on the last 2 major mods for my golf gt tdi, im soon going to be purchasing the miltek 3" down pipe/decat. But im unsure whether to get a "Longlife" exhaust system as ive been qouted £320 for cat back and fitment of the down pipe, or whether to go for the miltek cat back from awsome gti, but its £360 and i would need to fit it myself, Basically deos anyone really know if the custom made jobbie will be as good as the miltek system, Ive been told that the downpipe and cat back makes a real differnce on the gt tdi's,
Thanks