that cliopower site is mine. The race version is still available, but only on special order, what makes it more expensive. Renault Sport will liquidate most of the Cup and group N material to focus only on the Clio 3. It is stainless steel, identical to the street version. Orbisoud can confirm this. Only the endmuffler of the street version is coated. The reason the light comes on is that you have the 200 cel cats and the racecats. I really think Orbisoud uses the racecats on some of their streetsystems. I'm not sure of that, but it's the only explanation. The racesystem has no place for the 2nd lambdasensor, because that cat is as good as empty. The 2nd sensor measures too much bad air and it will come on. The difference in sound are the tailpipes of the endmuffler. The smaller pipes are the quite ones 87dB, the bigger pipes are for the 95dB version