After Trekkor's AX school at Infineon I need some confirmation/correction of my assessment. The course included lots of tight 140+ degree turns, two slaloms, and a long left hand sweeper. In all of these elements I experienced oversteer. Braking felt fine, although I'm sure some nice Porterfields would decrease the stopping time.

I'm not interested in upgrading springs or T-Bars because this is mostly a street driving car. But from my 'book learning' of suspension setup, I think tightening the rear would help even out the car. I would like to be able to dial in a bit of oversteer and then ease back off. The only way I can see to do this, with what I have in the car and what I'm willing to do, would be to fabricate an adjustable rear sway bar.

I know many people have their cars set up with no rear bar at all, so am I missing something? I feel like a bigger, adjustable rear bar would also let me run my front bar closer to full hard.

Here's my car setup:
Stock 1.7 (going turbo over the winter)
Stock front T-bars.
19mm front sway bar set at half-stiff.
Unknown age front internally adjustable Konis set on full soft.
Rear bilsteins of unknown age.
Rear springs of unknown rate (but comfortable on street so not HUGE, but not stock either).
Stock rear sway bar.
First generation Falken Azenis (205/55/16) on 6" Boxster 'Snowflake' wheels.
Stock calipers and 'cheap' pads.
19mm Master Cylinder
MC Brace


Also, Trekkor drove my car on a couple runs, so hopefully he'll chime in with an alternate perspective.

EDIT: Original topic erroneously said OVERsteer when I really meant UNDERsteer.