I bought ekaz's 4.8 and although "everyone may have loved it" let me tell you it's too loud. You hear every shift, sounds like a 68 GTO, not a BMW. Plus I think there is a drop in the low end compared to other 4.8's I have driven. It drones at modest speeds and any time you get on it everyone around you including the cops can't miss it. I have the stock components on their way (he used the stock stuff and cut it up... uhhh)to replace everything $$$ ching ching. I will be selling the rear (straight thru) pipes eventually so if you want this let me know..keep in mind ekaz put in a flowmaster 50 and then the straight pipes.