IS it really necessary for the coated?. If i dont get coated i can afford the lt's and the ypipe but if i do get coated i have to wait to buy the y pipe. I want to make a custom exhaust but i cant until i sell my LM and no one seems to want it. So looks like i have to use it for now. I am itching to starting fabbing up my custom exhaust but doesnt looks like thats happnin. So i realize coated keeps heat down but give me good reaosns why i should go with coated?