hey guys
just a question if i replace my rb20 redtop with a rb20 silvertop or even might be thinking of a rb25 (engine, gear box, ecu & loom) will i have to get the engine tuned to suit my hr31 passage if it comes straight out of a running r32? or will it still run fine?
also are there any mods i should know about to do the conversion?
cheers for the help guys