[Mackpipes]

I need some recommendations for after market sway bars. After actually getting the car out on the track I found the car has a ton of roll. I just want to corner a little flatter. Would the rear end be more likely to come out on me with a stiffer rear sway? What are the benifits/liabilities of stiffer sways. Any recommedations on brands and sizes? My current set-up consists of:
22 and 28mm t-bars
Bilstien HDs
Weltmiester neatrix bushings all around
turbo tie rods
strut brace
way lowered
fuchs 7s and 9s
Toyo RA-1s

Thanks for any input,
Ted