Hi All

I recently purchased a 2004 CLK55 AMG, totally standard. I'd like to do some mild modifications and maybe even remap for more power. Can someone let me know what are relatively simple mods I can do. I was thinking of improving the exhaust and air flow for a start so would like to know what sort of air filters are recommended and also is it possible to drop the cat from the exhaust without messing with the sensors on the exhaust? Also what sort of BHP gains should i expect from just improving the exhaust and air flow?

Cheers for any advice.

Ats