OKay got the Helix Cat-back installed and it looks great and sounds great... I only have one issue that I can't solve still... I have a rattle sound that comes from around the Cat Area but it only seems to happen in the Morning or if the car sits for some time.... It is strange. The Rattle needs to go it is a metal on metal sounding....

Please any help would be great

 

could it be your exhaust rubbing on anything?.. i have a rattling sound too, i'm not sure what it is and how i got it...

i think mine is touching the driveshaft and it only happens when i turn

try re-adjusting the exhaust.. it might fix the problem

 

I get that same rattling that seems to come from the cat area but it didnt happend until my friend with an STI bumped the back of my car (actualling hitting the exhaust pipe sticking out not the bumper) and now I get the rattle.

 

Hmmmm.... I still wonder what it is... I have gone under the car and nothing looks as though it is rubbing...

I just want to get rid of this terrible rattle!!!

 

PLEASE SOMEONE HELP.. I did multi searches and have looked at 40 different threads but I have not found anyone with a solution...

 

one of your hangers broke? the rubber hanger thingy broke? your exhaust (if 2 piece) is not tightened correctly?