DIY!!!!!! you will appreciate the time and effort you put into making your car the way you want it.

if i remember correctly the hardest thing about the install is relocating the O2 sensor from the manifold. mine was torqued in pretty tight and it takes an odd sized wrench. other than that all you should need is a couple of ramps or jack stands, a 10mm and a 12mm wrench and socket, and i think it's either a 19mm or 21mm wrench for the O2 sensor. other than that it's pretty easy.