My car handles corners fine with the front sway bar it handles like the small block, i have the aluminum water pump housing and manual steering too along with aluminum alternater brackets and pulleys.
Sway bar helps a lot I'm sure along with the reduced weight from the aluminum pieces. I just always push people towards getting bigger torsion bars because you don't lose anything but it makes the ride and handling so much tighter and more "secure" feeling (but not harsh). With stock 318 bars my Duster felt like a sailboat on the freeway, now with the 1" bars the car feels like it's on rails well into triple-digit speeds. And I don't even have any sway bars installed on my Duster yet... should hopefully be welding in some homemade subframe connectors this weekend though.
