I am so so impressed with AmD. Everything has been sorted. The fault was a faulty HPFP, it seems the internals we faulty and caused a small bit of damage to another part. I cant remember the name of it. The damaged part has been repaired and the internals have been replaced. All under the warranty from Autotech! The cracked section of the exhaust has been replaced with the non-resonated section that I asked for, again free of charge as the part was broken. I only have 1 back box now.... This will be fun! Powerflex bushes have been fitted to the entire suspension setup. Will report back when i have the car as to the difference. And the chrome surround has been fitted to my boost gauge, pictures coming soon! All fixed! Very impressed with AmD's service. I'm very glad it was nothing serious!