The EVO version of the M271 engine is a very efficient turbocharged and direct injected unit, powering mid range models such as C and E and SLK cars. All 3 versions/sizes of this new engine are 1.8 litre, but have individual factory ECU programming for different power. 180: 156 hp 200: 184 hp 250: 204 hp Our K-Box (CGI) is designed for an overall performance gain, and it’s a very efficient tuning product which is simple and easy to install. If you want there very best from your 180/200/250 CGI car, we recommend adding our front exhaust system as well as a performance air filter, which gives you the best performance available for these engines.