first off, i am not quite sure its my cat, but about 3 weeks ago i whent over a tall speed hump too fast and it dented my left cat. aprox 2 days later, all of a sudden when i started the car, it sounded kinda like rocks bouncing around in the cat. (i am 95 percent sure its coming from the cat..) that day however it stopped and the cat made no noise. today, however it started again. when the car is idling u cant hear anything, but if u rev it, u can hear it louder and louder. u can hear it while driving as well... anyway, does this usually happen when a cat goes bad? i am also assuming its not fixable and i need a new cat...
this leads to my next question i live in cali and smog restrictions here are tight... i want to be able to pass smog and i am going to be getting a supercharger soonish... should i replace my cats with high flow ones? get stock ones etc? any ideas and comments will be appreciated. i basically wanna be able to pass the sniffer, gain any possible hp their is to gain, yet not spend an arm and a leg. thanks alot.
this leads to my next question i live in cali and smog restrictions here are tight... i want to be able to pass smog and i am going to be getting a supercharger soonish... should i replace my cats with high flow ones? get stock ones etc? any ideas and comments will be appreciated. i basically wanna be able to pass the sniffer, gain any possible hp their is to gain, yet not spend an arm and a leg. thanks alot.