Be carefull, check your oil pump flow.
if there´s no oil, the lifters will scream like hell hehehe
and you can damage your engine.any news, let us know
Hi there, i have the same problem with my 95 GST.
i did a boost leak test, and the "whistle" comes from the Throttle body,
behind it, near the springs, probable we'll need new seals :thumb:Good luck