1JZ bolt on Turbo Options
So ran into a problem with a CT15B turbo and looking for alternatives while retaining OEM parts.
Tomei Arms M8280 is a laggy option but direct bolt on. I believe turbo kicks in 500rpm later than stock turbo.
Kinugawa or Mamba Tek turbos are also bolt on but only seen some JZX/Chaser owners in Australia use them (more so with Kinugawa). So limited information on them.
Rebuild/Upgrade (Driftmotion for example) to a steel wheel because stronger than ceramic wheel. But this option may take longer.