K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 2015-2023 FORD: Mustang, Mustang GT, 33-5029

Good part

The description says it fits the Mustang GT, it also fits the 2.3 ecoboost. I have K&N filters in all 3 of my vehicles. The 1st time they need a filter I put in a K&N lifetime filter. They work great and they are far less expensive than throw aways, over a short period of time. I do the same with my motorcycles. They have never let me down.

Fits perfect, haven't had the chance to see if it adds more power, throttle response is better and the biggest instant change was MPG. Easily 3 to 4 right out of the gate. That will commeserate with how heavy your foot is.

Easy installation and seems to breathe better

Felt like I had 1000hp after putting this on jk it works and fit well 👍🏼

I would like to leave a very positive review. But there is a problem with using this type of filter in some vehicles. In my case - a 2005 Chevrolet Equinox with the 3.4 liter engine, some of the oil from the filter affected the MAF sensor (an air flow sensor) and caused the engine to start idling way to high (1500-1900 RPM). I will have to either clean or replace the MAF sensor as a result of installing this filter.Otherwise, on the positive side, once this filter was installed, I could instantly feel the difference in the engine performance. It's not a *big* difference. But on engines like my 3.4 liter that can really benefit from a little more air flow, you can feel the improvement as soon as you accelerate onto a highway.

The car breathes better, my wallet breathes easier, and I swear the engine sounds just a tiny bit smug. If you want a simple upgrade that makes your Mustang feel a little more alive and add around 2 mpg better fuel economy, this filter’s your new best friend. Just don’t expect it to turn you into Vin Diesel overnight — unless Vin’s secret is better air flow and slightly better fuel economy.

I wasn't sure what to expect from this filter. I feel like across the board of aftermarket products, everyone is trying to sell you on an idea, regardless if it's true or, more often, not true. After install I didn't notice anything nor was I really testing to find out. I just continued to drive as normal and see what my thoughts would be after some time. Two things that get brought up about aftermarket filters, power and noise, I would say are negligible. I noticed no difference, seemed stock to me. However, one thing that did surprisingly creep up on me was mpgs. Now in the 2020 GT, I'm sure some purest out there loaths the conversation about mpgs and v8s, but when you daily drive it, its worth talking about. Now for reference I drive 95% highway and usually drive at 80mph for a total of 80 highway miles a day with limited to not traffic. I did not notice any change initially changing my filter. Now I religiously reset my mpg gauge so I know what I should be getting ever trip. What I started to notice with time was increased fuel economy. You see, my mpgs were not going up drastically, a couple tenths here and there, but not before long I was a legit 1 to 2 mpg higher than my baseline. I was consistently getting better fuel economy, I went from 25 to 27. I would struggle to get 4 days worth of fuel, heck sometimes i couldnt; I was cutting it close most of the time but it was doable and it was consistent for the most part. But now getting 4 days worth of fuel out of the car was easier. Look it didn't turn the car into a prius, just in my application it was saving my butt and giving me more peace that after 4 days of driving, I didn't have to stair my fuel gauge going home on my 4th day.