i dont think a £98 diesel powerbox will distroy the engine , even though its set a 8 on a 1to 8 settings, i just open the box an click on the power ratio i want. It dosent missfire or flood on number 8 an the fuel consumtion is just the same , mabye better . i just altering the manufactures crap emmision regs an letting the car run has it should, not how they want to, its the 86bhp virsion one of the last k12 ,s made, it cost £6950 on a ten plate with no miles, you could have bought as many as you like at that price while stock,s lasted an you payed no extra for metalic coulor,s. its only the vista model but the n-tex,s were only £7500 , but they were all petrol. An a diesel engine is quicker an more powerful than the 1200 when moded an less to run. The way it holds the road with 205- 40mm is ace, an on twisty roads will see off most cars. i had a guy with his girlfriend in a tvr soft top showing of on a twisty duel carrigeway, he would not let me pass ,an he was on his bottle limit, so i undertook him , he was steaming an the girl laughed he self nuts at him.