I'm a huge fan of accutune suspension. Totally depends on your budget, but coil springs really aren't that expensive. It's the shocks that are pricey. They have some fox ones at a reasonable price.
Personally, I'd replace the spring and call it a day until the shock fails, then call them up and...
This has been a thing with toyotas for a while...
I have a GX460 and have the same complaint. I'd love to swap for something that pulls more voltage and spins a little faster. In part it's toyota wanting to keep things quiet, but frankly, sometimes you need the sound of a tornado in the car...
Went from a Disco 2 to a GX460. The disco was great. The GX makes it look like garbage though, and that's coming from what was likely the most reliable disco 2 ever.
The fun thing about the GX is all the little upgrades you can do relatively easily, and all the cross compatible parts. MTS...
