I have the their HFCs installed. They've been on for about 13,000 miles and no complaints so far. No CEL without any extenders for the o2 sensors. I would highly recommend getting the Z1 metal gaskets. The gasket that was with the package was leaking within 1000 miles.
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Z1 Test Pipes, AAM S-Line Midpipe, Nismo Axleback, Takeda CAI, JDM fog light, Avant Garde M310 matte black, Tein springs, uprev 310whp-SOLD!
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