Just to point out - in the UK, the IS300 only has clear turn lights, the IS200 still has the orange strips. And we still have to have a amber bulbs.....
You might want to try and contact "superchargedmorph" He is on the UK side of the this club. He has a GS400 with the RMM supercharger. Maybe he could help you out.
I think you'll find Tony (superchargedmorph) actually had a TTE supercharger on his Lexus IS200 and not a GS..... sorry....... :snoooorrrtttt: