Hi Guys - Thanks for the site that has made my mind up buying an SLK55 looking at the market for a car that is a bit of a laugh. Got most of the info off here and thankful to all about the mods and the issues these things have. Been looking for 6 months and found a bargain for a MB FSH 60K model. Bought it and within 3 days got the X pipe mod, LOL - Yeah, not just abit louder ffs.. I like it but can see why you would advise to either go in stages or ask to experience one with a pipe fitted first. I'm in Sutton Coldfield and if anyone is thinking of this, you are more than welcome to listen to mine. It is ALOT louder.. Fantastic though. The car is amazing. Can't stop laughing how they made it up. If someone pulled up to me on the lights in a Boxter my car has 28 times the presence and noise. Hope to get all the advice off this site with veterans of owning these things. Lets face it the gearbox takes getting used to. Seats are awful. Can see why you don't fit 19" wheels. Stereo was good 14 years ago etc etc.. Brakes are fantastic. I'll be asking you guys for help here. Love it though. What a machine. Point me to those tunnels..