New Turbo and EMS owners
#11
The base kits run directly off the wastegate spring, which we spec at around .4 bar. With the GT1 kit, you should see between 6 and 8psi; itll vary, but average around 7psi. A boost controller(or GM boost selenoid) will enhance spool time by as much as 500rpm, so its very adviseable to go with some sort of controller.
#14
No more emissions equipment (air pump, evap system, yada yada), no more water temp (though everything else works normally), no more specially encrypted key (there's a transmitter inside the factory key, keyless entry works normally.