generally, it fits nicely in the passenger’s seat. make sure to buckle it in.
It works sort of like a conch shell. If you blow in it, it should make a trumpet sound. Your engine will hear it and become aroused, which gives it more power.

That’s a good price that will fit and work on the stock engine or does it have to be a different engine.

I want to add more HP to my Accord coupe but I dont want to get a turbo kit. (not yet anyway) I would like to add 40 HP to it but Im not sure how or if its even possible. I already plan to get a catback exhaust and a short ram intake but I know thats not gona bring it up 40 more HP. Any suggestions? The more details the better

I have the following parts on my car so far: DC Headers, 4-2-1, AEM cold air-intake, and a Apex’i world sport exhaust system.