This is based from my experience of having 7 yellow stickers.
19 INCH MAGS - should fail them, max size is 17"
APEXI SAFC 2, - will normally pass, but best to hide it
FULL STAINLESS TURBO BACK EXHAUST, - no problem unless it's too loud
GTR STYLE BODYKIT, - no problem unless it's too low
TIP TRONIC AUTO WITH F1 STYLE SHIFT PADDLES,
BLITZ BLOW OFF VALVE,APEXI AIR POD FILTER, - BOV may get failed if it makes any significant noise, air pod need to be securely mounted
TURBO TIMER, ELECTRONIC SUNROOF, - turn turbo timer off, sunroof should be fine
XENON ELECTRONIC ADJUSTABLE HEAD LIGHTS, - HID may get picked up and failed
ELECTRIC FOLDING MIRROR, ok
BLITZ FRONT MOUNT INTERCOOLER, - ok if securely mounted and front support bar not cut
OPTIMA DRY CELL BATTERY, ok
FULL KEYLESS ENTRY WITH REMOTE ALARM, ok
TYRES 93% NEW, ok
BOOST, gauges ok aslong as the don't block line of sight to road
OIL TEMP & PRESSURE,
VOLT GUAGES
Cheers
Paul