Ok Ok here's the deal! I own a 2001 c200k with the m111 e20 ml evo.
so far I have:
installed a larger crankshaft pulley
installed SuperSprint headers pipes and rear muffler
had an ECU remapped

BUT I still need more horses! What can I further do ?

Buy an slr engine and cram it in. It has been done.

pff

Trading it in would be the most logical way to do it. Anything else, and you're chasing windmills with a ton of cash and very little real gains.

If you're intent on doing this, you could try meth injection, lighter wheels, weight reduction overall, nos, the usual suspects, most of which will have to be highly customized.

hmm can i really reduce the total weight of the vehicle ? what to remove?!

rear seats

put sum nitro tanks in their...and destroy ur car

Lighter rims, full exhaust system, lining in trunk area, a/c, rear seats, spare, jack and tools, lighter battery, lining on hood, debadge . Just depends on what you can afford to not have, but there isn't too much you can do without it making your car not feel like a Benz anymore.

Would really be cheaper to get a 5-year-old Stang, and spend 2 grand on it to make it fast in a straight line. Not pretty, mind you, but fast.

A small 50-75 shot of nitrous wont kill the engine. But our cars arent meant for crazy hp or anything, thats why they made AMG models lol But weight reduction helps out quite a bit if you want to go that route. Power wise its going to be expensive to get some good hp out of it. You can put new cams and pistons in but with that kind of money you might as well get a C32.

but a c32amg has a damn of consumption!