Got new shoes 18X8 OZ Ultraleggra with 225/40 vredestein ultrac cento. Light and better grip. Car feels swifter and improved compared to stock. Next is eibach lowering springs and Litchfield performance pack.
The JBL system is pretty good. Noticed some rattles from the boot where the bass tube is. Went to Dunelm and bought 1.5m of wadding fro £3.74, more than enough. Cut the wadding and inserted it underneath the styrene inserts and and nooks and crannies. Now no rattles with plenty of bass when needed.