The website www.mccsport.nl has a lot of possibility's to upgrade your 100HP and 500.

Unfortunately for the English the site is Dutch...
But they have a lot of things for things for the 1.4 16v Fiat engine.
Like an airbox, cams, and even a complete Brembo upgrade kit for the front and back...
And it is a reliable company because they have 15 years of experience in Fiat tunig...

So enjoy..

Brembo upgrade for the brakes ???

Arn't the brakes sharp enough, nearly hit my nose on the steering wheel first time i used them