I recently swapped an M52 2.8 in to my Compact (RHD).
328compact.co.uk there is also a thread
here.
1. Where is X20 connector on a RHD car. Yip its under the battery, clipped on to the side of the fuse box.
2. Are there any issues using a LHD M coupe Engine loom with a RHD Ti? Not sure how it will be on your donor, however on the 328's have the battery in the back the main battery connectors where on the other side of the engine bay. I simply rerouted the wires to the battery in the stock location. >
here If you want to put the battery in the back, you could look into how the 323ti battery is mounted.
3. Do the Euro M3 Exhausts fit without mods on a RHD Ti? Not sure how the 2.8 will compare to the M3, however I used the original 2.8 header with a z3 mid section (
which needed extending) and then a 323ti Eisenmann backbox.
4. Does the battery need to be moved to the boot or can it still fit beside the fuse box? It fits fine next to the fuse box. (at least on the 2.8)
