Found this list on a Facebook listing from a aftermarket parts seller, just want to see if anyone has any knowledge of them, I've used prothanes bushings in the past with great luck:

Prothane 7-234-BL Black Front Control Arm Bushing Kit
Prothane 7-231-BL Black Front Control Arm Bushing Kit with Shells
Prothane 7-226-BL Black Rear Control Arm Bushing Kit with Shells
Prothane 6-1201-BL Black Control Arm Bushing
Prothane 19-1301-BL Black Rectangular Bump Stop
Prothane 8-907 Red Front Lower Shock Bushing Kit
Prothane 8-517-BL Black Front Engine Mount Insert Kit
Prothane 8-401 Red Front Sway Bar End Link Kit
Prothane 8-310-BL Black Rear Upper and Lower Control Arm Bushing Kit
Prothane 8-306-BL Black Rear Upper and Lower Control Arm Bushing Kit

 

On Prothane's website it doesnt show any application for our cars, might want to give them a call to find out for sure. Sometimes the website isnt always up to date.

http://prothane.com/vehicle-applications/?showall=true

Copied and Pasted every bushing out of their online catalog below

Lexus (Available in black only)
CONTROL ARM BUSHINGS, Front & Rear
(SC 300, 400)
92-96 Front Control Arm Bushing Kit 18-207-BL
92-96 Rear Control Arm Bushing Kit 18-304-BL
SWAY BAR BUSHINGS, Front & Rear
(SC 300, 400)
92-00 Front Sway Bar Bushing Kit, 30mm Bar 18-1121-BL
92-00 Rear Sway Bar Bushing Kit, 24mm Bar 18-1122-BL
(GS 300, 400, 430)
93-97 Front Sway Bar Bushing Kit, 30mm Bar 18-1128-BL
93-97 Rear Sway Bar Bushing Kit, 23mm Bar 18-1129-BL
98-05 Front Sway Bar Bushing Kit, 28.5mm Bar 18-1123-BL
98-05 Rear Sway Bar Bushing Kit, 14mm Bar 18-1124-BL
(IS 300)
01-05 Front Sway Bar Bushing Kit, 27.2mm Bar 18-1119-BL
01-05 Rear Sway Bar Bushing Kit, 14mm Bar 18-1124-BL

 

polyurethane bushing are squeaky and annoying. I had all the suspension bushing replaced on my G35 back in the day with energy suspension bushing and they made little difference in how the car felt but made all kinds of noise after a rainfall. If it pissed me off in AZ ( no rain ) Im sure people in other parts of the country will hate them. I had to repeatedly lift the car up and lube the bushing with grease.

 

I wound never switch to prothane bushings again.
I got a set for my eclipse from Energy Suspension while back, big mistake.
The positive is that you will gain noticable precision but loose any forgiveness
over any imperfections on the road. It felt like the car was glued to the surface of the road.
My koni yellows became useless.....if I wanted to set the shocks to softer setting I was bouncing
around that I would not believe, had to set it stiff all the time to reduce the bounce for rather jarring ride.
The ride became so unbearable it had to go. When I got my 2010 isf, It felt like driving a Cadillac:-)

Stay away!!!