Madness autworks has a tune option for these already. They are selling magneti morelli tunes that really wake up the 500. I am looking online for someone who used it on a dart.
I posted some dyno sheets a while back of what an abarth 500 can do with bolt on mods. Whats nice about that morelli tune is is go back to stock rather easily so warranty concerns should be moot.
So even though they are new one could mod an existing CAI into the car based on where it is. You could then have a custom shop weld in some race cats and a borla muffler, Morelli tune and your golden!
I would drive that as a DD.
I bet a downpipe would be easy to fab as well
TMC Motorsport
http://www.tmcmotors...arProducts.aspx
Giulietta 1.4 170hp 184ft-lb
Tuned 204hp 221 ft-lb
Abarth Punto Evo 163hp 184ft-lb
Tuned 193hp 225ft-lb
Abarth Punto Evo SS 180hp 200ft-lb
Tuned 207hp 236ft-lb
Novitec
http://de.novitec.nl....asp?prodID=127
Abarth Grande Punto EVO 1,4T
Standard : 163HP
+ Powerjet 2 : 184HP
Alfa Giulietta 1,4T
Standard : 170HP
+ Powerjet 2 : 195HP