Seems to have got much noisier after I had the Aero Manifold & Cat fitted. If, as Jay says the trim is useless- might just go back to standard cat back exhaust and retain gains made on the manifold and cat- around power and a little more torque.

Also, if exhaust quieter -- might hear more of the induction on the throttle bodies!?

The car is driving really well now - I just need to sort out an acceptable "sound".

Porsche 981 Spyder
V8 Speedster ( 5 years)
4/4 Competition spec (5 years)
4/4 4str Kent ( 10 years)