I just got a vibrant intake tube and filter. Problem is when i installed it the car stumbed, and ran bad. Thought it was because I disconnected the battery. So I ran it and it backfired under the hood and the check engine light came on. It only ran good when it was in the high rpm range. Went straight home and checked for leaks. none..I replaced it back to the hot box. Ran fine. Switched back to CAI and ran bad again. Does anyone know what's going on.