Yeah i just installed my hooker catback last week. It sounds great. I am extremely pleased with the system. Only problem i have with it is it seems to be hitting something underneath the car. I'm not sure on what it is yet. With the rear end all the way down it is only about 1/8 an inch away from the driveshaft. But when its sitting on the ground it should be about 2 - 3 inches away, so i don't think that is where it is hitting. Has anybody else had any problems with there hookers system hitting something from under the car?

 

what i think it is , its the intermidet pipe where the pipe bends over the rear axel. thats where i thinks it hits..mine does it once and a while..nnothing hard just a little vibration noise

 

Yeah mine doesn't sound like it is to loud either just a vibrating noise. It doesn't do it all the time just once in a while. Maybe that is where mine is hitting. I'm gonna check it out tonight though.