Review & Install Video
Hey, guys. Stephanie with AmericanMuscle.com, here with the Eibach Sportline lowering springs for 2011 to 2014 GT and V6 Mustangs. The Eibach Sportline lowering springs are going to be a good option for the GT and V6 owners out there who are looking for a spring that will give an aggressive drop and more aggressive handling. The spring is perfect for those owners out there that are willing to sacrifice some of the nicer amenities of a soft ride quality in order to gain one of the biggest drops from a lowering spring that's going to improve the looks and handling of the S197.
Lowering springs have a big impact on both the looks and handling of this car, and the Sportlines offer one of the largest drops. These Sport Line springs are going to work for both the coupe and convertible models for both GTs and V6s. But the amount of the drop will change slightly depending on which model exactly you have, due to the weight differences between the models. These will drop the GT about 1.3 inches in the front and 2 inches in the rear, and the V6 just over 1 inch in the front and 1.7 in the rear.
Like I said, it doesn't get much lower than this for the S197 from a spring. It may not sound like it, but it is a pretty big drop. Depending on your wheel and tire setup, this drop is going to eliminate a lot of the wheel gap that the car has from the factory, and it's going to leave the car sitting nice and even a little bit above the tires. But of course, that can change depending on what size wheels you're running. Now, a one-inch drop or just under a one-inch drop is pretty standard across the board for this year range.
The car sits pretty high on the factory setup, so the 1.3 and 2-inch drop that the Sportlines offer is pretty aggressive, and I mean aggressive in both looks and performance changes. It's also going to be one of the greatest drops from a spring that you're going to be able to find. This drop will lower the car's center of gravity enough to create more track-like handling capabilities. These springs are really going to reduce squat during acceleration and reduce wheel hop as well. You're also looking at much less body roll during cornering and less nosedive during braking. Lowering the center of gravity this much means that these springs are really going to change and tighten up the handling of these cars.
Now, if you think these springs have too much of a drop or you really want to hang on to some of the softer ride quality characteristics, Eibach also makes a Pro Kit lowering spring. They drop the car about one-inch or one and a half in the rear, and they will ride differently than the Sportline kit, a little bit more comfortably. They also have different weight distribution characteristics. To really lay this out, I would say that the Sport Line springs are more aggressive and better suited for some track use, or for those that are really looking for high performance and forceful looks. They're an all the way around more aggressive spring.
The Pro Kit springs, on the other hand, are a great option for those that would like to lower the car and reduce wheel gap, but that want to keep the ride quality and streetability in the forefront of their mind as well. This doesn't mean that the Sportline Kit won't work on a daily driven car. It'll work just fine. It really all comes down to your personal preference and what you want out of the springs. The Sport Line springs, like the Pro Kit springs, are still a progressive spring. The progressive springs concentrate on providing bounce at all times in order to improve handling.
I will say, though, that since the drop here is more aggressive than most other springs and keeping the spring rate in mind, that these springs are not the most ideal for drag racing. There are some better options available on the site for you guys that want to hit the drag strip. Those other options will allow for more weight transfer, and they'll give you better results on the drag strip. Now, these springs to provide an aggressive drop, but they're still going to work with both the factory wheels and the preconfigured wheel and tire kits that are on the site.
These springs aren't going to make the car difficult to drive places, but you will need to be a little bit more careful. They're going to be stiffer than the factory springs as well, so you will notice some more road noise and a few more bumps. But I wouldn't say that these give a bad ride quality at all. It's just not as soft as factory. I do want to say that a lot of times when you're shopping for lowering springs, you're also shopping for things like adjustable caster camber plates and a new set of both shocks and struts.
In this case, I wouldn't say that the caster camber plates are necessarily required. But I will say that a one and a half-inch drop is about the limit of where you would need a set of adjustable caster camber plates in order to get the alignment within spec. It's going to be close here, so a set of caster camber plates wouldn't be a bad idea at all. At the end of the day, it never hurts to have a set of adjustable plates. So if you've got the extra cash, I'd say go ahead. But in all reality, you should be able to get away without picking up a set.
As far as shocks and struts, this goes back to the drop too. I would say that you could get away with the factory shocks and struts in this case, due to the relatively minor drop in the grand scheme of lowering cars and the more forgiving progressive spring rate. I would also say that this is the case if you have some components with relatively low miles. If your shocks and struts have a ton of miles on them, then I would replace them. But in this case, since we're talking about relatively new cars here, you can probably get away without it.
When it comes to price, these springs are going to be one of the middle of the road options. They're not the most expensive, but they're not the least expensive either. They cost just under $250, which is the same price as the Pro Kit springs. If you're just looking to get your car lower and you're not concerned with ride quality, there are some other options on the site that cost a little less and will get you where you need to be. On the other hand, if you are concerned with a nicer ride quality and getting as low as possible, you're shopping in the right place.
So the install here is going to take about four hours, and I'm going to call it a two out of three wrenches on the scale. You will need some knowledge to complete the install, so I'd recommend having a knowledgeable helping hand or taking this to a shop for the install, especially since it's always a good idea to get an alignment after the install anyway. This install can be done on jack stands if you don't have access to a lift. But as usual, a lift would be your best bet here.
You're going to need a few tools, including a spring compressor. So make sure you have that before you start the install. You're going to need to get down to the spring and strut assemblies, so everything like the wheels, brakes, 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 nearly the same. You will need to disassemble some items to get to the springs. But ultimately, you'll be able to lower the rear axle to the point where the springs will be free. Just like the front, the rear springs install the same way they were uninstalled. No surprises here. The rubber insulators are transferred over and the new bump stops can be installed. After the new springs are in, you can begin reinstalling the shocks and everything else you want installed, and that's about all it's going to take. Like I mentioned earlier, a fresh alignment after the install isn't a bad idea.
Wrapping things up here, the Eibach Sportline lowering springs offer a spring with an aggressive drop and improvements in handling to make for a car that feels track-ready. They will drop the car just over an inch in the front and two inches in the rear, and will leave the car sitting just above the wheels and tires. The springs are not difficult to install. They're in the middle of the pack as far as pricing goes, and you can check them out more online right here at AmericanMuscle.com.