Hi Adrian, yes that's the set up, but am wondering about the Ark vs the straight test pipe, as the Ark may detract from the TDX 2 tone. Could you email Motordyne for confirmation of this if need to please.
One final thing please Adrian, I have been looking at the Headers available on your site, and trying to work out the best to be had, value for money with the above set up, for best gain, also either be Ceramic or Stainless too. The car will receive a Rev up once all had been fitted. The car in question is a DE set up. Mike