OK, according to the GCR, the purpose of IT is as follows-

It is the intent of these rules to restrict modifications to those useful and necessary to construct a safe race car.

So wouldn't it make sense that wiring is not limited to the stock, and I quote "UNMODIFIED" harness. This means that any replacement wires should meet factory specifications, including color (the only method that is "in concurrence with factory procedures, specifications, and dimensions").

At the same time, fasteners "may be replaced with similar items performing the same fastening function(s)."

So you can't upgrade wiring, but you can downgrade bolts... Or conversely, I have to keep my stock 20 yr old harness but I can use aluminum and titanium fasteners anywhere I damn well please.

Oh yes, and then the always beloved- you can't move the battery, but you have to run a huge wire for a master switch...

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Matt Green
"Ain't nothin' improved about Improved Touring..."