It's really a personal preferance.
I would put 3037s on my Z if I could. Lag isn't a big issue since power is always a downshift away.
for a relatively small twin kit you could upgrade the stock CT-20 turbos with CT-26s and keep the sequential system. For something a little bigger you could go with a twin TD05 16g or HKS 2530 kit. These 2 kits are very common for 300Zs but I'm sure they can be adapted for Supras also. There are also quite a few daily-driven street Supras with 2835 kits. These kits have considerable lag, but make enormous power.
Is there any reason you aren't considering single turbo kits? There are MANY more options with single kits than twins.
I would put 3037s on my Z if I could. Lag isn't a big issue since power is always a downshift away.
for a relatively small twin kit you could upgrade the stock CT-20 turbos with CT-26s and keep the sequential system. For something a little bigger you could go with a twin TD05 16g or HKS 2530 kit. These 2 kits are very common for 300Zs but I'm sure they can be adapted for Supras also. There are also quite a few daily-driven street Supras with 2835 kits. These kits have considerable lag, but make enormous power.
Is there any reason you aren't considering single turbo kits? There are MANY more options with single kits than twins.