I have the Hikari LED Thunder in my low beams. I had no issues putting them inside the housing (I did not even remove the battery), the light output way better than high end halogens and love the look. I have Cougar Motor LED DRL/high beams. For the DRL the light is very consistent, no flicker and high beams are crazy bright. Each set are $37 each on Amazon.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
https://www.amazon.com/Cougar-Motor-...s%2C174&sr=8-3