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i jsut installed my r/t cats along with my nismo exhaust. has anyone else had a raspy sound when first installed. its pretty raspy when its cold but goes away after i drive for a while. will this eventually go away. otherwise the saound and performance is amazing. nned info please. prob a repost but cant search and too lazy to look through every thread thnx
Yeah this topic has been beaten to death, but since search is down is cool. I get the raspiness a little when its cold and when they were newer. I hardly notice it at all now except occasionally at WOT. I am running stock exhaust though.
basically like a high pitched rattle. a really fast rattle. thats about all i can say. like the metal gasket is loose and its vibrating against other metal