[1320]

99 to 04 are interchangable. I tune gen 3's everday. Depending on the software even the vin can be changed. I can change a 02 vin pcm to a 04. I can eve change it to an 05 but a couple small things get screwy, but they still run.

I even had the state dmv say....and I quote"we know somethings wrong but we don t have the technology to prove it, so I guess your ok"

He was referring to a smog check on a 370 ls1 with stage 3 cnc heads, headers, and a 242/246 cam....it loped like crazy but still passed.