One of the higher Tein’s possibly. AT LEAST Flex’s.
Stay away from K-Sport, Megan Racing, Brian Crower…
Trust me when I say it’s extremely hard to find a good coilover set under $1500. Check out KW Varient 2’s or 3’s if they make them for the Supra. Bilstein PSS9s maybe. I don’t know how good some of the Japanese manufacturers coilovers are, like Cusco, Zeal, HKS, etc… Zeal and Cusco I’ve heard good things about though. JIC/Cross even. I know a lot of the Porsche guys love the Cross offerings for our cars. In the end it all comes down to how much you want to spend, what type of quality you want in the coilover, and what type of ride quality you want. Just because a coilover is high quality (material, presentation, performance figures) doesn’t mean it rides nice.
I’m going to be getting JRZ RS Street’s for the 996, but they’re between $3500-4500. I’m getting those out of recommendation from both JClark and Adam H., plus I’ve gotten a ride in a 996 on them and it rode amazingly well.