1. Avoid MRT.
2. Avoid MRT at all costs. I cannot stress this enough.
You're best to call and ask your insurance company. They would know.
However, regardless of insurance, you can still get a defect notice if the turbo kit is not engineered.
The good thing about AVO is that it's quite hidden. A cop with no car knowledge will go, "No snail thingy. No worries." It's your choice whether you want to risk it or not.
I'm currently running AVO Stage 2. Good kit.
Not sure if I mentioned this or not but, avoid MRT.