Zzz. This thread says in the beginning it’s about sound and sensations.If you are not going to tune your vehicle after installing an intake IMO don't bother buying one unless its for the sound. I have experience tuning with Hondata. Without tuning, usually there is a small loss somewhere in the powerband and a small increase somewhere else. With tuning you can usually see increases across the entire band, especially the mid range when lowering vtec engagement.