This was not my first and not make my jeep more off-road capable........ but one of my favorite, because i benefit every time I am in my jeep. Simple to install over a weekend and made a huge difference.
I bought this and installed in the entire floor of my JKU. I was amazed at how much better my jeep was for road noise. I was topless and doorless on the test drive and knew instantly this was up there as one of my top mods.
My GF has a Honda Fit, so same general problems with next to no sound deadening. Sound deadening of pretty much any variety will greatly decrease road noise, and lower the sound floor (what is considered quiet before your music is playing)
Amazon sells some great stuff for the price, Noico. It is not the absolute best, but for the price per/sq.ft. it is one of your best options. Just look up some videos on installing it, as well as how to take apart your interior panels on the Fiesta.
I just replaced stock Dunlop HP Signature tires with the Pirelli Cinturato P7 All Season tire’s. I thought there would be an improvement in noise reduction but I did not notice anything. Your best course of action is to install sound deadening material on the door panels such as this.
You can do Noico for deadener.
Have you listened to the Hertz? that will be the big factor. their quality is great its just the sound you have to worry about. If you are used to OEM system there will definitely be an upgrade.
For explanations on different kinds of dampening, this is a pretty solid site: Sound Deadener Showdown
For vibration damping, look on Amazon (or your favorite retailer) for generic butyl sound deadener material. I bought this one in particular, but you can dig around to see if there's anything better out there.
For decoupling, I've had success with Frost King Duct Insulation + aluminum tape to tape off the edges.
For general sound vibration dampening -- think loose brackets, panel edges, and even the rattle of your door when it closes -- this butyl rubber sealant tape is absolutely boss for the price, but you'll have to get it shipped to a local Home Depot instead of your house (at least that's how it is for me). There are similar products out there so you can look around, but I go frequently to HD, so it's not a huge inconvenience for me.
I'm also dabbling with using 1" sheets of rock wool in doors as a sound deadener, but I haven't done any concrete investigation if this can fit inside a door without interfering with stuff. I bought a sample sheet and it's still sitting in the garage, waiting for a free weekend ;-)
Good luck with your project!
Noico black: https://www.amazon.com/dp/B01BKKZ1AM/
to lessen the drone just line the trunk and under back seat with the mats below, best sounding exhaust by far.
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https://www.amazon.com/gp/product/B01BKKZ1AM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Reading reviews like this one I'd say save your $60 per tire and get the regular "there’s only a marginal difference between the two sets ": Tested: Do Acoustically Insulated Tires Really Hush Road Noise? – Feature – Car and Driver
You could spend part of that $240 saving on some sound proofing material instead (or just not bother!): Noico Black 80 Mil (2mm) 36 Sq Ft (3.4 sqm) Car Sound Deadening, Butyl Automotive Deadener Restoration mat and Noise dampening Insulation, Insulation & Noise Control - Amazon Canada
It dropped it approx 20 decibels. I used these https://www.amazon.com/Noico-Deadening-automotive-restoration-insulation/dp/B01BKKZ1AM and the loaded mass vinyl https://www.amazon.com/dp/B08562Q8Z8
Okay so after reading all of that I looked around Amazon on this seems to be the most popular and we'll priced. https://www.amazon.com/dp/B01BKKZ1AM/ref=cm_sw_r_apa_i_y3JBEb243P2S1
Ok, so only use OFC wiring, and don’t order from amazon.
As far as sound deadening, I was thinking about using this...
Noico Black 80 Mil 36 Sq Ft Car Sound Deadening, butyl automotive deadener restoration mat and Noise dampening insulation https://www.amazon.com/dp/B01BKKZ1AM/ref=cm_sw_r_cp_api_i_kWZsEb41BXVM9
But I also thought about using Soundskins...
https://soundskinsglobal.com/products/soundskins-classic-bulk-kit-stealth-black
I take it that going for cheap sound deadening might be a waste of money?
Short answer is "it depends". (Mostly on what your rack is made of and the nature of sounds coming from it). With all my experiments so far, I would now investigate active noise removal first (Changing fans etc.) before trying noise dampening.
On my side panels, I have 3 layers of materials (Layer1,Layer2,Layer3), plus the foam. This is what I used for corners. After I had bought and used some of these materials, I realized I probably did not need Layer1 and maybe even Layer3 because the side panels of my rack are pretty heavy gauge already. I measured a reduction of about 1-1.5 db in sound levels at my desk which is about 4 feet from the rack. It did help more in muffling and tuning out some of the shrill fan sounds from my router. Unfortunately, the stock fans were still so loud that I had to completely replace the stock fan panel. If I had done that previously, I might not have invested in the time and money to setup all the other sound dampening materials.
I've subsequently added and changed a lot of equipment and pay attention to noise levels each time I change something. My rack measures ~34.5db (No servers running and optional rack cooling powered off, all other equipment running) from the desk and I think that is quiet enough. With the DL380, louder UPS (UPS1) and optional cooling on it is ~42db and that is still comfortable. Not sure how much of it is due to those layers. With the door to this room closed nothing is audible anywhere else in the house.