picardwebber
New Member
I have recently joined the AMG world having recently bought an SLK55 AMG. It was already remapped by the previous owner and has had its secondary cats removed and sports boxes fitted at the rear. The next step I've been told is to fit sports header and sports cats off it. Quoted cost for this is £2k with a promise of an additional 30-40 BHP. Anyone had this done and does the promise equal the reality?