1. Blackwing is expensive and basically a debaffled stocker.
2. Like you said TSP lid is gone
3. SLP fitment does blow
4. the clear lids are only cool if you have a dry shot, on the dyno.
5. I have no idea about Granatelli/whisper lids
6. Fast toys are badass and 85mm, but I heard they hit the hood due to the larger neck
I got an slp, the fit sucked so I sealed everything with weatherstripping, and painted it black/vinyl striped to hide its identity Haha.