Hey guys im a bit new the whole car scene but would like to do a bit of modification to my 1998 Nissan Skyline r34 25gt. Im wondering about how to install a new muffler, would i have to buy new gaskets, headers etc or can i just simply buy the muffler and fit it. Also it would be nice if i could have info about which muffler to get to which will result in a nice legal sound and location to purchase one.