Throttle bodies

[SCOTTY]

Does anyone know if the TBs from a single spark r1150 01 plate will
fit my twin spark r1150gsa 03 plate, mine are well worn and i have
sourced these from a low miler. cheers.

 

[MikeO]

Yep - single part number for all models...

 

[Two wheels good]

There are code numbers (not part numbers) on the central tab underneath the throttle body. I know there are many variations between models RT\RS\GS but I'm not sure the extent of changes within the GS/GSA model.
If the numbers on the replacement pair don't match your originals you might want to check with an expert.