I've been having some annoying vibration noise .... This ONLY happen when my car is travelling above 4000rpm ... anything below that is normal ... after carefully listening to it ... Its coming from the center muffler that i removed (directly below our center compartment) ..
I suspect this few thing is causing it :

1) recently just changed my downpipes & exhaust pipes to 3" & deleted my center muffler (only using hks hi power catback) ..

2) worn engine or transmission bushing ..

3) cause by my exedy triple plate ..

Guys ... what do you think ?

 

lol you put noice twice.. i was gonna let it go and figure typo..but you also said it in your post ha.. its noise by the way.. but anyway..

if you just changed your piping, it will hang low and could be vibrating against your oil pan or the cross member bars below.

check your clearences... did you get one that connects to stock hangers?

 

Ha ha ... must be getting old ... shame on me ...
Yes ... its connected to the stock hanger ...
Will be checking the thing that you mentions ...
Thanks for the reply ...

 

Bump for some info, boonkae were you able to resolve this issue?