Make sure you check the ECU date before you buy if you wanna buy a big turbo.
* JB4 if ECU is locked or you want a mild tune
* Meth kits are meth kits more or less. You can get wild with Reflex, but no point. Boost reference is fine
* Ecutec is the way to go, assuming you get an unlocked ECU
*...
Very unlikely. Payn’s personal car is (was) a Pure800 car running low 9s, and lives in the Denver area. This sounds mechanical or an issue with the tune. DA there is like 10k feet.