Lets say I had money to spend. How would one go about turning the 180hp lug 4.5 into a 200-250HP or something comparable to the 6.9? Without putting a 6.9 in it. Using parts readily available to any one of us.

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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