Originally Posted by phil_focus

shocks are same size so will fit in the st170 hubs but the st170 has stiffer springs (also lowers car by 10mm) and i think stiffer shocks.

also the st170 has the getrag 6 speed box due to the narrower power band needing shorter gear ratios.

you will certainly need the st170 ecu and engine loom and even then you may well have problems as the st170 fuel pump is coded to the ecu so got knows how that would work on your conversion.

it certainly is doable swapping the lot over.

oh and you'll need full st170 exhaust system too.

this is a fairly big conversion imo