How to tell if my td5 has been remapped ?

[County4.4]

I recently ordered and received my new nanocom. After plugging it in and having a bit of a play im curious as to know if all my readings from the engine, turbo etc are all correct.
Is there a site where i can check these ?
Also how can i tell if its been remapped before i spend the money on getting it done ?
Its a 2003 td5 defender.

[Bohica]

Good question, my TD5 goes like the clappers, especially after the turbo kicks in, I've wondered if it has been mapped.

[bsperka]

No (low) turbo lag is a sign of a remap. If it goes like the clappers - another pointer.

[roverv8]

sometimes if your lucky the tuner will provide a sticker to put on the ECU.