160bph

Hi all Wondering if my question is a silly one now! As I posted first in the engine section. Wonder if anyone can tell me how this power increase was achieved I think in late 2006 on the 200 clk petrol engine. Also if I bought a 160bhp pre 2006 model, is it a mod that could be done by a...

Hi Wonder if anyone can tell me how this power increase was achieved I think in late 2006 on the 200 clk petrol engine. Also if I bought a 160bhp pre 2006 model, is it a mod that could be done by a garage or is the mod one that cant be done after. Many thanks all