K&NCold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 9HP: Compatible with 2.4L, L4, 2015-2019 Jeep (Renegade, Compass), 77-1565KS

I bought this to install on a 2016 Fiat 500X AWD 2.4L, which is the EXACT same engine configuration as found in a Jeep Renegade 2.4L. It fits perfectly, all mounting holes and hardware line up, and the wiring extension worked as well. Noticeable improvement in acceleration, but there are a few drawbacks:1. This intake is about 5 times louder than the original one, so it may not be for everyone. You can even out the loudness by also replacing the stock muffler with an aftermarket one to allow more exhaust flow, this worked well for me. But it is still much louder than stock.2. On a Fiat 500X, the crankcase ventilation tube has a quick-connect style connector where it connects to the stock air intake. If you use this K&N kit, you will need to cut off the connector and simply push the tube onto the barbed connector provided.All in all, I still think this kit is worth installing even with those drawbacks. The 2.4L engine already has 2.5" exhaust so when you swap out the stock muffler it flows quite nicely and has a wonderful tone not often heard from a 4 cylinder non-turbo, IMO. I used a standard flowmaster available on here for about $80.

I read reviews that said you only hear it at 3-4k rpm. I was easily hearing it at 2k rpm, its a nice low rumble and growl, and when you floor it, you really hear it.It has a nicer buildup in power than before, so I gotta say I wish I bought this years ago!

Easy to install! Maximized performance and MPG!

Installed on a 2016 Jeep Renegade Trailhawk.Usually K&N has everything covered for a smooth install, this was anything but smooth. A lot of figuring things out on my own. The way the PCV and temp sensor connect are a joke, just push them through a rubber grommet, they are faced downwards. Heat, vibration, bumps all help to pull them downward, I would think eventually the temp sensor will fall out because there's nothing holding it in place but a rubber grommet. Worst part is you can't see it so the sensor could be dangling right now and I wouldn't know it. Jamming a PCV plastic elbow through a rubber grommet, and pushing your air temp sensor through a rubber grommet is something I expect on a cheap chinese intake, not a K&N. You should have made the intake tube to accommodate the PCV and air temp sensor.MPG - no difference in the last 3 tanks of gasPower increase? Maybe a little bit.Seems to shift smoother.Yes I did a KAM reset.The intake is a lot quieter than I thought it would be, under normal driving and on a flat highway 70-80MPH you can barely hear it unless there's a headwind, even then it's not that loud. Accelerating on the highway or going uphill, you're gonna hear it pretty loud.

Only gave it 4 stars because the directions were a little vague but not hard to figure out...Not sure what it has done with milege but can feel a little more power and ooompff... Also sounds better.. knocked out the whiney sound...Great product!!

Love it …Felt the engine tune up forsure but anybody know why after a a day my car won’t start anymore ? So I had to switch back to the stock and it starts

It works as advertised. Mild gas mileage improvement. Good product, well built

Great quality as you would expect from K&N

Great