It's excellent IMO.
You may want even more front camber on track depending on wear. I posted a series of articles on alignment covering all sorts of aspects including for track days.
Build thread with tech tips
Will the lower cushion hold in place without the upper backs? If so, that might be a good compromise. The lower cushion does not weight that much and would conceal/protect the bare body and gas tank access under it.
Without the upper backs, you get a little more bass, road noise, and exhaust...
One day one of track weekend July 4th, a couple drivers reported my car smoking from underneath. It has never done that before. I knew I overfilled my oil by 1 quart. But no changes to my A10 trans, which has been on track many times since I added a second OEM cooler.
No smoke experienced on...
I cleaned my cone filter. Used compressed air from inside out. Then warm water wash with some dish soap in a 5 gallon bucket.
I run the Outerwears pre filter. Now I only have to wash the OW filter, and the cone stays perfectly clean. I can even throw that pre filter into the wash.
OP To simplify things for you, usually CHT approaching 250 will limit you. We add aftermarket or DIY oil coolers for that and that usually takes care of it for up to 30 min sessions.
Once that is handled and you are driving faster the diff will overheat, at 290. Adding a diff cooler solves...
I think there are guys that modify the attachment method of the lower splitter to make it easily removable. Then they put it on only for track day (and drive carefully to the track lol).
You might try search.
Meanwhile I'm pondering making my own lower splitter on my GT.