90 degree spacer boss is best if you want to try something like that but a proper remap which is only a few hundred pounds will remove the light permanently plus get the best from the de-cat exhaust system fitted. Your car will never fuel right without a remap as the ECU controls the fuelling by the pre and post cat lambda`s which as you have removed the cats the ECU will basically be confused.
hmm yes true, the exhaust is one of you custom ones by the way. sounds fantastic. Think it mite be a remap, however the only thing putting me off is how it drives. Drove a few that had been mapped when looking for a car, nearly all of them were very jerky when smoothly pressing the accelerator peddle. some of them the clocks were skitty so instead of being smooth they jumped up in 10's and 20's of mph.
Cut a long story short i don't want to wreck a good car.
Any good mapping place would remove the map if they mapped your car and your not happy with it for a good reason. Vince at Stealth racing is the only person i would recommend personally for something like this but it is a bit of a drive for you.