Hi, I had a DE model with the japspeed k1 on and it was great sound and sadly sold the car. I now have the later HR model and put beluga decats on and cut the middle resonator out and replaced with straight pipe. It has to much rasp for my liking. Would i be better to put the mid box back on to make it sound like the k1? Or buy a second hand k1 system and maybe put the cats back on Does anyone have the k1 for sale?