If anyone is looking to upgrade their headlight bulbs to LED, I can highly recommend these as a direct replacement. No heat sink, ballast resistors or any modifications required whatsoever. A bit pricey, but great quality.https://www.classiccarleds.co.uk/products/pair-of-compact-h4-p43t-472-hi-lo-beam-led-upgrade-bulbs?_pos=1&_sid=30f49498d&_ss=r