Tuft test the rear window to see if it has attached flow.
Then read my Anal Probe thread- the 1G Probe has a very similar shape to the S13.
Those tires look really low profile. Make sure you get a set that is the same or larger rolling diameter compared to stock.
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He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
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