Often times performance cams offer more power at the cost of driveability and smoothness. For example, shifting your torque band to peak at higher RPMs will increase your peak horsepower but hurt your low end and midrange acceleration. This might be advantageous in WOT situations or at the track, but it wouldn't help much in normal driving. It's a tradeoff. Considering Mercedes builds luxury cars, it makes sense that the factory cams are tuned more for daily driving (low/mid range).
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1994 E500
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