Ok everybody I have just recently been hearing this metal to metal vibrating noise under my car and when parked you cant really hear it, but when you drive slow you can hear something like metal vibrating under the front of the car... I looked at it and It seems to be coming from the catalytic converter on the right passenger side...If a catalytic converter goes bad can you hear those little pellets inside banging around? Opinions thoughts please thanks alot....Also if it is gone bad do you think I can take it to the muffler shop and have them cut the catalytic converter off, and weld me up a straight pipe in its place??

 

yes and yes... its the cat converter.. i had the same proble.. it was mostly when the car was cold. once it would warm up it wasnt AS bad.. but it was still there... took it to the muffler shop, but i had a new cat put in... and flowmasters wile i was at it..

 

Either a heat shield needs some spot welds or bolts, or your cat internals may be busted up...

 

Ok I was just wandering cause the darn thing also hesitates as well but once you pick up speed it seems to go away...What would be the best route the car has flowmasters on it

 

get the cat delete or replace it... i had the hesitation as well... with the cat gone bad you might want to check your o2 censors... i had to change those as well... the censors wan make you lose power... les miles/gal and the hesitation

 

If you replace it, be sure to get a high-flow/high-performance Cat for more HP...

 

thats were i went wrong... i dint get one of those[:@]

 

does anybody know where I can get one and how much do they gonna run me??

 

Heres' one from SLP:
http://www.slponline.com/view_produc...37&BIG=31037-1

 

I'd say just cut the middle man and gut the cat.