Review on 2008-2020 Nissan/Infiniti K&N Cold Air Intake Kit: High Performance, Horsepower Boost: Designed for 370Z, G37 3.7L V6, 69-7078TS Compatible by Richard Payne

Let me start by saying that I love the oral kit and I think it's worth what I paid for it. My biggest criticism is the installation instructions. The hoses are too long to return the crankcase and each hose has been cut off at least halfway. That was for a 2015 370z, maybe the Infiniti '09 is different, I don't know, but you'll see when you get into it. The second problem was that you record everything at the same time. If it's easier to work one side at a time, also remove the cross brace if doing this alone. This will make your life easier. You should also completely eliminate certain things that are not listed in the instructions. Despite all of this, I noticed better throttle response and my tank rode about 30-50 more miles. It also gives you a really good sound (especially at higher revs) compared to the original. Not to mention it looks bad @$$. I definitely recommend it.