Christ, you have a new thread with a simple question every other hour. Have you ever heard of google?
http://www.samcosport.com/usa/...issan
It's the induction kit. YES you need hoses on your car. NO you can't just plug it up. YES your shop guy is a moron. NO you don't have to drain all your oil out for this.
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I think it was stated in one of your other threads that if you really know almost nothing about cars, maybe it's best you find a friend, or read a book or something on engine before you start tinkering with your SR.