so got a series 2 stagea manual rs4s.. 80,000kms on the clock.. making 'eeeeeee' sound on boost, changed intake to silicon pipe, checked for shaft play.. minimal shaft play. check turbo wheels for chips nothing.. blows no smoke. checked airbox for leaks nothing, no boost leaks.. car is running fine, makin boost fine, bought car with the noise.. soo hmmm.... opinions?? also just wondering is there any turbos out there which is a direct bolt on standard dump, standard manifold, standard intake... steel wheels even with ballbearing or without? Whats the going rate to get the standard turbo highflowed?
turbo sorta sounds like this... LOL