It's not about Airtrek but more in general. My Airtrek comes with clear windows (local USF car), but I've tinted the rear doors, rear side panel and rear windscreen 75% tint. Using it for 4 years now, no problems...
The Dual Solenoid Boost Controller R (DSBC Spec R) has four programmable
boost settings or various levels of boost. This unit features a built-in boost gauge,
peak boost display, four different boost
settings...