last night i was back out of the driveway and noticed my car is not as loud as it normally would be? as i go down the street, it sounds like there is air "wooshing" out from under the car. now i hadnt drove the car all day, it had been sitting. but recently ive noticed a rattle from under the car, and i thought nothing much of it maybe a heat shield. so today i jack it up and slide under it, i dont see anything out of the ordinary. no loose heatshields, but if i bang on the cat it rattles from the inside as if it is loose, and or falling apart. the car has a great loss in power also. now at first i thought possibly i cracked my shitty header. but then i figured if there were any sory of hole in the exhaust it would just sound loud and shitty. so are these signs of a plugged cat? i havent drove it enough to try the "rotten egg smell test".

this is for a 95 gsr, the cat is a Catco highflow, direct fit. only about 2 years old. do you think they warrenty anything like that?

 

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