TTRS master cylinder upgrade - The facts.
Doesn't work on all cars. The first off the line cars (2004) used a different master and servo along with a different brake pedal switch. Later cars (2006 onwards) changed to an external switch which is the same style as the TTRS master. Its the later style of master than can be changed for the TTRS. But its not just a straight swap as the brake lines are in different positions.
So this where we have a full kit that fits the later style masters. The kit includes the TTRS master, TTRS reservoir, a link pipe to use the stock location lines, and a new longer pin to hold the reservoir to the new master.
With regards to some brake pedals dropping when stationary, this is quite normal and usually due to not enough assistance on idle from the vacuum and servo system.