My08 STI
Headers should be stainless so won't rust I have mine heat wrapped haven't had an issue. Have had the wrap off recently to weld another O2 bung on and headers were shining and not corroded .
That's after 12 months and driving all conditions. I use a more expensive titanium based fibre wrap tho. Oh yeah with no undertray.
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Last edited by amtrapid; 11-10-2014 at 08:50 AM.
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