Review & Install Video
Hey, guys. Stephanie with americanmuscle.com here with these Whiteline Lowering Springs for 2015 and up S550, V6, and EcoBoost Mustangs. We're gonna be talking about a few different things with these springs, but mostly we'll talk about what you can expect from these springs in both the performance and looks categories. And we're also gonna talk about the install as well. I'll talk more about the install later, but you're looking at a two out of three wrenches on the difficulty meter.
The Whiteline Lowering Springs are gonna be a good option for those of you out there that are looking for a lowering spring for a daily-driven car, or a street car that's gonna give a good drop but that's designed to be used with the factory shocks and struts. These springs were made to provide balance with both the OEM and aftermarket shock and strut setups. While lot of other springs out there function better with aftermarket setups, these springs offer a drop of 1.3 inches in the front of the car, and 1.7 inches in the rear. Now, this is what I consider more in the standard side in the world of lowering springs for the S550. Currently, you tend to see that the majority of springs offer a standard 1-inch drop, and the largest drop that you'll find in the spring for an S550 is just over 1 inch.
These springs offer that in the front and even more than that in the rear. Of course, a lowering spring is gonna lower the center of gravity to provide some handling improvements like reducing squatting body rolling corners, and eliminating nosedive under hard braking. A 1.3 to 1.7-inch drop is enough of a drop to eliminate the gap between the tire in the fender and it's gonna leave the car sitting just above the wheels and tires. Now, keep in mind that the drop will look a little bit different depending on your wheel and tire setup. And these are gonna be compatible with both the factory and aftermarket wheel and tire setups.
The plus side of the S550 is looking so good and responding so well to a little bit of lowering, is it even create a functional low. By that, I mean it's low enough to look good but not low enough to cause issues either on the tire or under the car. It's gonna leave you with a very streetable car still. Getting back to the drop on an S550, the majority of springs out there are only offering a 1-inch drop. The S550 chassis doesn't need a huge drop to obtain better looks or an improvement in handling. The S550 responds well to what some of the older generation Mustangs would consider a very small change in ride height. You'd be surprised at how well the S550 chassis responds to just a 1-inch drop in both the functional and looks categories, and these springs are even more aggressive. You guys saw the before and after shots.
The other thing to consider when you're shopping for springs besides the drop, is ride quality. These springs do have a performance design so they are made for street and race applications, but they do it without compromising ride quality which means that they're a good option for a street car. They don't have a harsh ride quality but they are a firm spring. When it comes to ride quality, sometimes you can get a rough ride quality when you start lowering the car more. But I wouldn't really say that that's the case at all with these springs. The ride is more stiff and you do notice more road noise. Other than that, you'll just notice the car having less body roll and be more planted overall.
Overall, these springs are intended for street and occasional track use, so they do get a stiffer than factory ride quality, but they're made to not be harsh. So, they're still gonna be comfortable but also able to perform when you want them to. They are progressive rate springs which means they'll be more forgiving on the street than, say, a linear spring would be.
As far as price, these springs are gonna cost between $200 and $300, which is right where the majority of other springs are falling as well. Of course, there are some springs that are either less expensive or more expensive than that, and of course, springs that are all across that price range.
So, the install here is gonna take about four hours. I'm gonna call it a solid two out of three wrenches on the scale because you will need some knowledge to complete the install. So, I'd recommend having a knowledge of a helping hand or taking this to a shop for the install if you haven't done this before, especially since there's always a good idea to get alignment after the install anyways. This install can be done on jack stands if you don't have access to a lift, and as usual a lift would be your best bet. You're gonna need a few tools including a spring compressor, so make sure you have that before you start the install. You're gonna make sure you get down to the spring and struts assembly so everything like the wheels, breaks, and ABS lines will need to be moved out of the way, so you can pull the assemblies out of the car.
The spring compressor will help you remove the spring from the strut and install the new front springs which are compressed and installed the same way. The strut assemblies go back the same way they came out, and the install is the same for both sides. The rear is where things are a little bit different, but nothing crazy here. Essentially the IRS subframe will be dropped along with the rear shock mount, so you can slide the rear springs out. Just like the front, the rear springs are installed the same way they were uninstalled. There's no surprises. New bump stops go over the shocks, followed by the factory dust boots. Your new springs can be installed and the IRS subframe can be bolted back up. And that's about all it's gonna take. Like I mentioned earlier, a fresh alignment after the install isn't a bad idea.
Wrapping things up here, the Whiteline Lowering Springs offer a 1.3 and 1.7-inch drop in the front and rear respectively. And they are performance-based spring, designed for street and occasional track use. As always, I suggest you check these out more online for yourself. And for all things Mustang, keep it right here at americanmuscle.com.