Got a free SLP blackwing.
What's performance consensus on this lid vs factory lid versus say a SLP normal lid.
I remember everyone and their dog wanting the blackwing 10 years ago but don't remember exactly what the reasons were for it being so wanted
features (crosswise fins, silencer neck) that dog the
stock piece, and it fits without rubbing under a SS hood.
I did my best to measure the pressure drop back in '02
or thereabouts and could not get a reading on the
Blackwing or aftermarket lids but got significant drop
on the stocker; the filter accounts for much more than
either BW or aftermarket lids.
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