just wondering about the permits, have hks foam filters and strut bar on my 33 gtr and when i got my yellow sticker it said to ''ïssue permits for modifications'', but the guy at the pits wasn't bothered and just didn't give. if i go get permit, can i get permits for the pod filters (do they just need to be secured) and do you need any engineers certificates for any other mods
the reason i ask is because i dont want them checking the car over and over for any other mods.
also my horn for my car didn't work, do you need one legally if your pulled over by the cops ie can they defect you on your horn not working?