Inside of Up-pipe BRIGHT WHITE

[84T-typeMike]

Hi All,I just up-graded my stock up-pipe to the Poston unit.When I took the stock pipe off and looked at it,On the inside It was BRIGHT WHITE in color.Is this NORMAL?I first thought running lean,then thought maybe it is caused from all the 110 Oct. fuel I have run through it.Am I on the verge of a meltdown?What is a NORMAL color one should expect to see?Thanks much!

 

[Turbo Riviera]

white could very well be lean fuel mixture, or blown head gasket.

O2 sensor could be bad. In fact, very likely given the 110 fuel (if it's leaded).

If it was the head gaskets, you'd notice a dramatic drop in coolant level.