my 110 didnt do it ive chopped the cat out totally stripped and cleaned the vnt on the turbo replaced all vac pipes and i had a straight pipe with no backbox (now removed) it whistled like a trooper but no owl noise

i have 0 faults on vag com
theres loads on you tube with the noise so it left me stumped ive put my backbox back on now and just run it with straight pipe without a cat
