Ok so I am bonding well with my new 4/4 and I love driving it BUT... it is too quiet !!!

I have a s/s 90 side exit exhaust which I will fit after its 1000 mile service...

Before I explore the usual suspects for new options does anybody have for sale a sports main box that gives a more sporty sound ?
Plan B what new options give a good sound ?
Thanks in advance


" I LOVE THE SOUND OF THROTTLE BODIES IN THE MORNING " (ROBERT DUVAL IN "APOCOLYPSE NOW " )