Date registered: Sep 2006
Vehicle: '99 2.3L Kompressor
Location: Atlanta, GA
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Welcome to the world of Mercedes where the star means everything costs more just because it is a Mercedes.
For the money, the performance gain is better than other options compared to chip tuning, headers (real headers, not the ebay crap), etc. You do get a full kit and not just the pulley. If I remember right, I think they used to charge separately for each item so the price has actually come down:
"Harmonic Dampner and Blower Overdrive Crank Pulley, MA relocation pipe, spark plugs fuel pressure regulator, belt"
From what others have written, it is a stock pulley with a ring welded to it to increase the circumference. That is kind of disappointing but apparently the much more expensive Kleeman kit did the same thing. I guess if they really do a good job of balancing it, it should be OK. Some of the gearheads who have torn into the M111.975 to tune them and increase the boost say the engine is robustly built and that they should be able to handle the increased boost pretty well.
Last edited by xvvvz; 09-10-2011 at 08:04 AM.