Yup! with the Incus bodykit what came next was the horns. I always felt the stock horns lacks some ommph! so after consulting a few 'horn' experts and hooters = (horn frequent users), I decided to go with the Hella Twin Tone. You can get this at most car accessories shops, and it does come with its own relay. But for the X20, we will not require this relay as the car already comes equipped with the horn relay which can be found in the fuse box.