Hello, I got home from work today and thought I would add a cold air feed to the original airbox. So reomved the airbox, battery and battery box and proceeded to route my new 3.5" ducting. I had to move the loom from under the battery box and the 2 earth wires. It was a bit of squeeze but I managed to route it from the air box down the side of the battery, under the headlight passsed the intercooler return and set opening of the ducting next to the fog light. The looms required a bit of easing to enable them to be resecured but no major 'tugging' of the wires. I refitted the earth terminals, battery box, battery and then air box. Pleased with my new ducting I decided to go for a bit of a drive.... Now under acceleration it seems like it is misfiring, really hesitant... I quickly plumbed in the original air feed but it is still the same.. I didn't have a chance to give it a boot before I started the work, but It would be a bit of coincidece that a coilpack or some thing also gone down. Any ideas or pointers??? Any info much appreciated..