On the O-rings you should lubricate them with a little mineral oil, because the R-134A uses a oil that attracts water so what happens over time is that the connections have the possiblity to corrode and become very difficult to loosen up.
I have one of the headers on my WRX and its fits great and looks great, just bought a set of headers for my buick they look really nice but i havent installed them yet, working on building my motor.
Like the title says, dont need them anymore bought M&A heads and Jesel shaft mounts. Was told they will fit stock heads, but have not bolted them on to check. They look almost brand new.
$420 obo plus ship. Or trade for DP or Short block parts building a 4.1
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