Hi everyone, I'm thinking of buying a tuning box for my is220d in a bid to cure the turbo lag and help with the overall driving experience. I'm not looking to make the car into a rocket ship but a few more bhp, less lag and more torque would please me.
I've looked into a couple of companies and have contacted them. Racechip being the 1st, the cost is 229euro. The box connects to the fuel rail only, I'm unsure if any companies connect there devices to other parts of the engine, aswell as the fuel rail.
The 2nd company I've contacted is tdi-tuning, I have not had a reply yet but I have used them in the past for my Golf. Cost from them is more expensive at 291euro.
What boxes are other people using?