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M133 VS M274

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Old May 9, 2015 | 10:50 AM
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123Britt
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From: Madison, Alabama
2015 C300 RWD AMG SPORT ~ Iridium Silver
M133 VS M274
Anyone have the details or link to details describing M274 engine details?
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I know that the M133 has forged pistons / crankshaft. What are differences? I it just a larger turbo & I/C? M133 assembled by one tech instead of multiple specialist? Downpipe on M133 must be bigger etc.
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ALL I can find is basic info.
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