This is really the first upgrade i have done..I bought the car used about a month ago, and am basically going thrugh and changing all the fluids and filters, plugs and that kind of stuff.i do like the sound alot. At first I thought i didn't care for it, and that it would be something that i would want to change after a day or so. But I drove a couple hundred miles yesterday and I like it. It lowers the whole tone of the engine to more of a low growl...but then when you roll on the turbo you hear the "woosh" of ait sucking in. I plan on adding the front steering brace kit next to smooth out the handling a bit. I would imagine that will be all I do before winter,,,then i will take a look at upgrading he exaust and maybe upgrading the engine power. Thanks for taking the time to look at my upgrade...any advice is more than welcome!!!!!