VIN is fastest, the dropdowns are most controlled, manual is the escape hatch. Pick whichever's easiest for you.
P
PROFESSOR
Three ways. VIN is fastest — we decode it live against NHTSA's database. Year/make/model is a guided tree. Manual is for swap builds where the VIN lies.
VIN
·
Year / Make / Model
·
Manual
Decode by VIN
17 characters. Stamped on the dash + driver-side door jamb.
VIN
Decoded online via NHTSA vPIC. Demo: 1G1YY22G4X5101001 ('99 C5 LS1)
Year / Make / Model
Pick from the dropdowns. We'll fill in the engine and PCM.
Year
Make
Model
Engine
Transmission
Manual Entry — for swap builds
For when the VIN says one thing and the engine bay says another.
Manual Entry — accuracy on you
Manual entry bypasses the lookup. Downstream numbers will be less accurate.