I'll be performing a pressure test on my IC piping soon, and I'm also looking for a new wastegate actuator.
It takes longer than 4k to hit full boost.. more like 6k, so I know there's an issue.
I'll keep everybody updated on what I find.
I'm also looking into a wideband, probalby the Innovate LC-1.
2006 sonic blue zx5 GT2871r turbo.