Hi
I've got coilovers of an unknown type on my imported 350Z version S. The car suffers from boomy road noise. I've sound proofed the rear with dynamat extreem and fitted "quiet" Dunlop Sp01 tyres but this has only reduced the noise slightly.
The only other factor that I can think of is that perhaps the coilovers are setting up some sort of resonance within the car's body. In which case, the solution would be to fit a set of standard shocks and springs.
Has anyone here had the same problem? Any suggestions would be much appreciated.
Cheers
Jon