I am still new to all this technical suff but here is what i know
You can replace your m20 engine with a m50 engine (m3 moter) It had been down numerouse amounts of times
im not sure how much it would cost for a whole new moter, maybe around 5,000+?
now if u just want to replace the existing moter then just go to a junk yard and see what you can dig up
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