All UK Zeds were fitted with Brembo calipers...
The GT pack added -
- Cruise control
-Leather, heated seats with partial electric movement
-Upgraded Bose stereo with subwoofer.
Sounds like the usual syncro issue from 4th to 5th...
What sort of budget do you have for the exhaust as we have a few options here - http://cougarstore.co.uk/index.php?main_page=index&cPath=1_10
Please do let us know if we can help...