Currently car has an Evolve Stage 2 on it with decat, so the IC is a nice addition. I bought it off Evolve last week and as usual their service is faultless - the IC arrived in the post quickly. In person is a massively bigger than the OEM unit and of very high quality. At least 3 times the size in terms of volume. It is both thicker and taller. The downside to this is it's weight which is c.11kg heavier than the OEM unit. This was a concern to me as it sits out front but it is of course mounted quite low which is a positive at least. The IC was fitted yesterday and this evening I begin a 2,000 mile road trip in Europe. Initially I could've sworn the throttle response is slightly better but I've only done 2 miles on a cold engine so haven't got any proper insights yet.