Nige, I'm loving the advertising plug!
So, pound for pound, the DIAS is more effective, correct? You said the DIAS is being tuned for "very similar results to the CDA" - does that mean that the CDA will give better performance (to be honest, if I'm going to be spending over 300 notes for an mod, and paying more for the insurance, I might as well spend a few extra quid to get the best deal)?
The other thing is that I saw on your website that you've got brakes and exhaust deals, as package prices - are they when you take one or more upgrade together? Or is it for the remap+brakes, or remap+exhaust, etc?