like you say other than lowering and the wheels she is standard, i must be honest though im fitting a catcam to it very soon and running the athena headgasket but its for cam wear issues these cars suffer from, so the cam will be much harder wearing, not to add silly gains. standard is fine for me, only other change is brembo 4pot front calipers to be fitted and larger coupe 20v + discs but is all oe fiat stuff so isnt spoiling the looks of her
very nice always liked that colour. i'm all for standard, run mine for the first 5 years close to standard but there's always room for some little improvements