Thank you for the vouchers! Which exhaust do I pick?

Just wanted to say thank you to MX5 Parts for the competition winning vouchers I received last night!
Rarely win anything so this was a welcome boost during lockdown.

So, with £100 to put towards something cool…
Which exhaust upgrade do you guys recommend for my ND. Wouldn’t mind a little more noise and power but I don’t want to be waking the neighbours up when I drive to work at 6am!!