I'm waiting for danny_p to get back to me on telling me what saab injectors I need, he thinks it was the 9000 turbo. They are bosch green injectors and are a straight swap over from the current 8v ones. However I now I'm underfuelling very badly (17:1) so I would beneft from larger injectors, but I've got mods to suit the bigger injectors, you don't so if you start dumping more fuel in you will just end up with bad fuel economy, no power gains, more backfiring and possible terminal damage to the engine. Unless you NEED to get bigger injectors then I'd leave them well alone.