L8 ecu £250 / new loom made £500 / pf09 tps £100 there's £850 to start with roughly possibly more! never mind the rest of the parts, map sensor etc etc. then there's mapping £450-500, Then your limited on who can map it. Then all extras are at an extra cost ( anti lag - launch control etc etc. this ecu on my car has the lot and is freshly brand new, no high resistance wiring! No brainer if you ask me.