Importing my modified 2012 Mustang GT

[Florida_Man]

Hi I have a 2012 Mustang GT which I spent $$$ on here in Florida.

There maybe a chance I relocate back to the UK and I’m wondering if I could/should bring my mustang back. It’s basically a weekend/track day toy.

What the process?
I had the car for nearly 7 years so shouldn’t have to pay any import tax.
What about an Iva test, would it need one as the car is over 10 years old?
The car has kooks headers, JLT cai and a dyno tune. What’s the thinking of the car actually passing emissions?

I know it would have to have a rear fog light fitted and change the rear lights.
Does anything need doing to the headlights?

Can anyone recommend me a reputable company to carry out the modifications?

Thanks for your help