Triton aftermarket turbo

Anywhere between $3500 and $5000 depending on what make, model, and exhaust you want fitted.

Denco claim 35% more...

http://www.dencodiesel.com/kits.html

$2500 is the average price and will give you around 30% more power and 20% more torgue

David.
Sell it and buy a turbo model it will be cheaper and better. The turbo unit has a bigger clutch and the after market boys dont change them. I know the stamp duty is a pain but any modifyed vehicle has higher insurance and lower resale value, it is always better to keep a vehicle standard. Eric.