Ok, this has not been done to death yet I dont think. I have a spider box which I had on the previous 2006 CRD and transferred it to this one 2010 SRT Design. I am trying to get peoples opinions on the best way forward. I intend to upgrade the intercooler, air filter and map. I can get a straight map from Celtic tune which gives 290BHP which with the K+N or equivalent and intercooler should give around 300 or as near. Is this the easiest way? I was going to swap it but I just can't let it go so I thought I would spend some money on it and keep it a little longer