Thor88

When removing the turbos, do I need to remove the oil and coolant lines? Or can I just remove turbos from the manifold and leave those attached? Tried searching but all results just state "remove turbos". The service manual shows removing all lines, but that seems like it would be unnecessary and complicate the process Thanks again for the assistance

Manifold/turbo was my next guess, but I would have expected that to result in some change to performance/boost, the sound is quite loud which would signify a fairly large leak.

Hello all, I have a 93 GTR that has recently begun making a fluttering noise under load that sounds like a loud exhaust leak or something caught in a fan. The sound is coming from the passenger side of the vehicle near the turbos and is only noticeable at higher revs. It has no affect on performance, holds/builds boost normally, etc. My first guess was a gasket from turbo elbow to down pipe, but the sound is still there with down pipes removed. Vehicle is stock other than Apexi intake and Nismo down pipe. I have searched but have been unable to find anything referencing a similar sound given that there is no affect on how the vehicle is running. Any help narrowing down where the noise may be coming from would be greatly appreciated.