For those of your with the greddy sp2 installed. Ive had mine for about less then 2 months now, and i hear a rattling noise when i accelerate, very subtle, its almost like a buzzing noise like something is loose but i checked everything on my pipes and their all tightened up nicely. Do any of you have the same problem?

 

I just got mine about a week ago haven't heard anything.

 

Theres a bracket that has a TSB that causes a rattling/grinding noise which may be suspect. Your installers may have not tightened your **** up is another and last; I've had my GReddy up for over 2 years and I have been all up and down my exhaust system and cannot think of anything where as the GReddy Catback is causing that noise???

 

Is the noise at a certain RPM? I have the buzz also. It's nothing loose, I think it's the resonator.

 

could be a bad flex pipe ? does it sound like a buzzing sound ?

 

the noise comes at around 3000 rpms. But not all the time, i just took it out today and the noise wasnt there.

And its almost like a buzzing sound, but more like a rattle.

 

Sounds like the flex pipe problem. have you ran over anything ?

 

the only thing ive ran over is honda's...lol

No but really i have not ran over anything, well since the greddy makes more vibration on my car, maybe there was already something loose under my car, and now i can hear it. Im gonna get under my car tomorrow morning.

 

You can try to find it but I'm pretty sure I know what you're talking about. I got the same exact buzzing, almost sounds like the pipe is hitting the heatshield.

 

So does this sound bother you?

 

i have the same problem on my 06 max it is the y pipe it has a heat sheld on it and the tac welds broke on mine so just bend the steel apart and it should stop let me know if you dont know what i am talkin about

 

i think i know what your talking about, ill check my y-pipe. but just in case for the sake of posting again. Please explain to me how to do this and where its at..