I'm really contemplating installing PES's supercharger for my 2.8. I've never had blown engine and I have a couple of questions. First, I only have 3,300 on the odometer, should I break the engine in further before making this modification (wanting to optomize longevety as well as performance)? <p>Second, I've read here on the forum that the 1.8T doesn't experience the same loss of power the 2.8 does at altitude (I never really noticed in my previous cars, but I really do in the A4). Will this also be true of my 2.8 Kompressor?<p>Lastly, will installing the supercharger change the weight distribution enough to require any modifications to the stock sport suspension?<p>Thanks for any help you might want to give. BTW, I just read the Autoweek article on the 99 M5. wow

Having driven my fwd 2.8 with the PES supercharger, I would say that it didn't alter the handling any noticable amount. With the Quattro, which has a bit better weight distribution, it should be even less of an issue. The supercharger itself doesn't weigh all that much, as it is a fairly compact unit. <p>As far as break-in, I don't think it matters. The engine is just about fully broken-in. My 30v felt completely broken-in at about 4K miles, which you are awful close to.<p>Mike<p>P.S. Not sure about the altitude question.