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Engine Swap: M97.21 to replace M96.24


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My car is a 2003 986 boxster S with a manual gearbox. There is a M97.21 motor, from a 987 Boxster S with around 14000 miles, which I am thinking of swapping in place of my M96.24 (which is now past 65000 miles).

I would have to use my original exhaust system (including headers), my original clutch/gearbox (flywheel is on the new engine), and my original ECU. The shop that proposes to do the work assures me the swap will work without any problems but, since there must be differences at least in the exhaust system and the ECU, I am doubtful.

What do you think: Can a competent shop do the swap? Will the engine work properly with the old ECU and exhaust? What could be the greatest difficulties?

Thanks very much!

Edited by Costas
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