Did you read the auction??!!

My auctions are always very descriptive and all the details that I have are there.

However, in short, no this will not fit a standard configuration RST, as there is no front part to the system. If you were planning to get rid of the standard turbo elbow by fitting a Cossie turbine housing for example, you'd need to make a downpipe to suit, then you could make it mate to this system.