Hey, i am pretty new to this forum too, but have sum good insight into maps, i have had 3 maps on my car lol.
1st BluFin - will increase ur bhp to around 255-260 bhp.
2nd Revo - will increase ur bhp to around 260-265ish.
3rd is custom codes - Crap lol
the difference between blufin and revo apart from the bhp is th torqu figure. i dnt know of th top of my head th exact amount but i do know the revo is closer to 300 than blue fin.
with blufin the power wen u drive the car wil be quite gradual and towards the top rev range it will kik in hard.
with revo the boost is immediate. u will feel the grunt instantly, and u have the torque to shift it too.
I have Revo in my gti mk5. and its a killer map.
My friend works in the tuner i had it mapped from ang i had him increase the boost figure for me.
If ur car engine has already been opend up (35-55000 miles) then u will benefit from revo.
I had my car dynod, and only with a stage1 revo my car gave out 278bhp.
Revo it mate, costs around £500 and its worth every penny.
Ciao,
Muby