so, spent some spare time just trying to tidy up the car before taking it for a rwc (safety certificate).
this car had been pretty neglected - i don't think it had been washed in a year, smoked inside, and dirt everywhere under the bonnet.
so just grab a spray of generic "black stuff"
and a couple of minutes later things are starting to look a bit nicer. Also took a microfibre towel to anything I could to mop up dust.
and more recently, i've reinstalled the stock diverter valve ("blow off" valve) and airbox with snorkel. one thing about S15s, there's always plenty of them being wrecked and spare parts are pretty common to come by.
why? well it probably wouldn't pass RWC with the bov blocked at the throttle inlet - plenty of stupid "SuTuutoottuutoooo" for the idiots out these but pretty immature. plus a big exposed pod sucking up engine bay heat is never going to do anything but add more noise and less power.