Iv just fitted a itg but just wondering if the whooshing noise from inside the car is normal? Sounds like it's coming through the vents, lol... It's louder at low revs and dies out towards the end of the revs. Not had a car sound like this before with a filter fitted but my 1st turbo, looks like all the pipes are nice and tight and fitted correctly, bottom one at the back of the engine was a pain in the arse thew, lol...
Cheers
Danny