the turbo kits range from about £2000 on ebay to about £4000 new, then obviously yu have the labour charges for fitting them, which is usually priced at £28ish an hour. You will also be advised to upgrade your clutch, suspension and brakes, these are not inclded in the turbo kit, so will be at extra costs. Then you have to consider extra insurance, running costs, repairs costs, etc, etc the list goes on and on and on mate!