Sorry for delay! For some reason my reply did not get posted - Yeah aware of MOT hiccup with decat however have that covered ... did not know about APR discontinuing! Thanks for the info! - Yes @rjwojcik the car will be going to Doug at MRC in the coming months (think I will let xmas pass first as the price tag is a little eye watering). Stage 2 through MRC with decat downpipes is the plan. Car currently has a non-valved 3inch straight pipe catback and a CTS dual intake system so the decat downpipes and stage 2 should complete it performance wise.... let's face it these cars are awesome out of the factory!