Nissan 370Z Forum - View Single Post - Metallic sounding RATTLE after EXHAUST install

wuppee · 07-04-2014, 01:05 PM

Hey Guys,

I have seen a few other threads about this but there has been no definite answer. So i guess I'm hoping to FINALLY get some solids solutions to this common problem..

So i got these AMS headers installed on my Z with MagnaFlow HFC's. And also installed cold air induction/intake.

Straight after driving out the shop i immediately heard a metallic RATTLE sound. It occurs when the car is under load a little bit (going up a hill or in a to higher gear) around 3000rpm. They have checked the system 4 times. They can't see the system touching the body anywhere. They took the MagnaFlow resonators out and replaced with OEM resonators and the RATTLE still occurs..

It doesn't happen when the car is cold. It only happens when the car has warmed up. Sometimes is really loud and sometimes it doesn't happen.. This is driving me insane..

Any Assistant and solution/thoughts would be greatly appreciated

Thanks in advance.

07-04-2014, 01:05 PM	#1 (permalink)
wuppee Base Member Join Date: Nov 2013 Location: us Posts: 6 Drives: 370z 13 Rep Power: 12	Metallic sounding RATTLE after EXHAUST install - CAN WE FINALLY RESOLVE THIS PLEASE?? Hey Guys, I have seen a few other threads about this but there has been no definite answer. So i guess I'm hoping to FINALLY get some solids solutions to this common problem.. So i got these AMS headers installed on my Z with MagnaFlow HFC's. And also installed cold air induction/intake. Straight after driving out the shop i immediately heard a metallic RATTLE sound. It occurs when the car is under load a little bit (going up a hill or in a to higher gear) around 3000rpm. They have checked the system 4 times. They can't see the system touching the body anywhere. They took the MagnaFlow resonators out and replaced with OEM resonators and the RATTLE still occurs.. It doesn't happen when the car is cold. It only happens when the car has warmed up. Sometimes is really loud and sometimes it doesn't happen.. This is driving me insane.. Any Assistant and solution/thoughts would be greatly appreciated Thanks in advance.