Hello! I will start out by saying that I have a problem since I bought my first Mercedes Benz and that is I am obsessed with them! I just picked up an 86 190E 2.3-16V, and looking at another one. Fun car! Going through everything I noticed a hole in the center resonator. Can I take it out, pro's/con's? Also I was going to give her a good tune up. Recommendations for cables, 8MM, brand? Air filter K&N or oem? Also the previous owner thought this car was an "el Camino." It is so low the rear camber is negative HUGE! Should I get thicker shims, purchase Height Adjustable Rear Spring Perch's, or purchase adjustable Camber Arms? All of the self-leveling system was disabled. Also does anybody know what the mechanical differences were between the euro version, and the American version? Thank you