Thread: 97 Grand Prix, what years are parts interchangeable

I want to say 97-03

Depends on the part really.

But alot of the main stuff is the same. Like MAFs, map's for 97-03, but depends on L36 or L67 motor for some.

Coils, plugs, wires, exhaust, water pump stuff like that.

Depends on what you are swapping.
97 PCM will only work in a 97
97 GTs and some SE's have a 4T60E trans 98+ have 4T65E
97 GTP has 4T65E-HD trans with screw in cooler line fittings 98-03 has quick release fittings
03 trans can only be used in 03 cars
97 GTP has a vacuum tree on the blower 98-03 cars do not
97 Drivers Information Center will only work right in 97 cars
97 GTP idk about GT or SE has a tire pressure monitor that works through the wheel speed sensors with a reset button next to the OBDII port.
Body panels trim panels and such should all interchange.
Maf sensors are different in 97-98 at least in the GTP as is the throttle body.
This is everything off the top of my head.