Engine swap check
I swapped the engine of a clk 200 compressor 2004 to 2008 and as I read the 04 is 163 hp when the 08 is 184..did I gain those 20 hp or do I have to remap or replace the ecu?
Also I've been checking these chips on Google that will let me gain and balance the a/f ratio and gain much power any idea?


They both m271 engines and technically identical except different supercharger pulleys (c230 has higher boost pressure).
If you have an access to both engines (new and old) try to measure pulley diameters. Since the difference between boost pressures is small they even use the same fuel injectors.


