that looks like a first year metalwork project.and what will it do to your lambda's/emissions/MOT?
 
If you de-cat your car, you'll need to have a suitable remap that can map out the use of the lambda sensors or else it will constantly throw up errors and warning lights and may cause your car to run badly.
 
decat

He got an 'F' :yes:

its quite funny as the advert on ebay says its ben developed at their research facility! more like the D&T department at school

ive seen the scorpion one which is much much better, missed that opn ebay, it went for like £50