Turbo size

[lgonzalez_1986]

HOW DO I FIND OUT WHAT TURBO SIZE I HAVE I KNOW ITS A TURBONETICS AND I KNOW ITS FROM THE MID 90s I HAVE 42.5 INJ WITH AN ATR PITBULL CHIP FROM 96 SO OTHER THAN THAT COULDN FIND NO SERIAL# ON THE TURBO.

THANKS!