Hey guys my stagea is a series 2 RS4 with an aftermarket FMIC, xtreme ceramic button clutch, turbo back exhaust with 3" cat, K&N pod, an aftermarket ecu of some sort (im not sure what exactly as the previous owner put it on) and an eboost controller running three boost levels. Not too sure how much i want to spend im just interested to know what my options are at this stage and what the most recommended option would be.