I bought my 2.4 Ti last October and loved almost everything about it apart from the handling. A heavy car coupled with a great lardy engine sitting very slightly ahead of the front axle didn't feel very Alfa Romeo to me (most of my Alfas have been RWD).
I did a fair bit of research, coupled with some great input from Ned Kirkham at Autolusso, who had previously Polybushed the front end. I knew that I didn't want coil-overs and that narrowed down my options considerably. So I opted for Eibach Pro Springs and Bilstein B4 dampers all-round. I also went for Eibach's heavier gauge anti-roll bars front and back. Tyres are Michelin Pilot Super Sport.
The suspension was fitted by Autolusso and my tech involved me right through the process which was great. The feel of the car couldn't have been more different! I always liked the directness of the steering, but it felt as if it had a quicker rack fitted and the whole car felt much more purposeful. By the time I got back to Norfolk I knew that I'd made the right choice; the handling was much flatter, more predictable, and the understeer that was always present when pushed had lessened considerably. Just one problem; the front dampers were, IMO, still too soft. I discussed this with Ned and decided (against his advice!) that I wanted B6 units on the front.
That was 2,000 miles ago and I couldn't be happier. The car isn't harsh on long journeys, poor road surfaces don't unsettle it much and the handling is very neutral for a FWD car (although it will always understeer a bit when pushed). The B6s could do with a bit more compression but that's a minor niggle and, at the end of the day, it's a road car. I've had it out on two trackdays though and it was embarrassing cars that it had no right to!
So, a big thumbs-up for Autolusso, they've been really helpful and Ned knows what he's on about. If you're thinking about upgrading then put the above products on your shopping list, and if you've got a 2.4 or 3.2 then seriously consider the B6 dampers on the front. The combination works.