Lol, I just dealt with this yesterday. I bought an enclosure off another member that fits in that area. The installer was like "this sensor was not on the other car." From my quick research, it's either TPMS or Key FOB, as Gomer suggests. I didn't see where he relocated it to, but I can still drive my car and the tire pressure lights have not lit up.
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Competition Clutch|Fast Intentions|Maxbore|NST|Setrab|Stillen|Tomei|Uprev| Z1
Avant Garde|SPC|Stance|Whiteline
Aerojacket|Seibon|Tanabe|TRS|TWM
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