i paid £150 for it, the tailpipe on its own is £60 then the extra pipe work and the 2-3 hours labour it took them, was more than i expected but they stuck to their quote but its not something they do everyday so was hard to quote for
and no its not just longlife that do it, any custom exhaust garage can chop your back box off and weld on some pipe on but ive my mates have had longlife exhausts before and i was happy with the bends and welds on their exhausts so i went to them over a place like powerflow which can get very mixed results lol
the noise is a little louder on idle, gets quite loud as you pull off but strangely gets to not much louder over standard higher in the revs and is pretty quiet at cruising speeds which is good, it does have a nice burble though