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Perrin Sway Bar - 22mm, Rear Kit
Part #: PSP-SUS-233
$419.99
$411.59
For each
For each
Free Shipping! *to continental U.S. only
Fits On:
08-10 Impreza 2.5i
Description:
The only way to make your car turn, stop or go is if the entire available tire patch is hitting the surface at hand. The factory included what many regard to be a whimsical attempt to increase cornering with puny sway bars on the front and rear. PERRIN™ sees the need for far larger and stronger sway bars and now offers two choices for both ends of your car.
For street enthusiasts that simply want to attack the drive to work with more gusto, the 19mm upgrade is the ideal choice. While dedicated track hounds will delight in the increased snap now available from our 22mm offering. Each size and each end also incorporates 3 adjustment holes to help you custom tailor your suspension to your specific needs and driving habits. Made from solid steel and heavily powder coated to prevent the rigors of salty roads that wreck havoc with less worthy products. All kits include polyurethane pocketed bushings to prevent tedious re-greasing and all necessary hardware for a clean, and painless installation.
Also includes swaybar endlinks to make your new swaybar purchase worthwile! Any upgrade to the sway bars are nearly lost if you chose to reuse the OEM endlinks, since they are rubber on one side. This connection between the sway bar and the control arm is crucial to proper operation. PERRIN™ replaces any and all rubber with 6061 billet aluminum and spherical bearings that can handle almost 9000 lbs to give you the best handling from your new swaybar!!!
By utilizing aluminum the sway bar can respond in a far more linear fashion to cornering forces, while the spherical bearings allow additional articulation under hard cornering. The combination forces and allows the tires to remain in contact with the road, and give you better handling. Simple to install and maintenance free. All include instructions and hardware.
Features:
Look under your 2.5. Go ahead, we’ll wait…. See that there is NO (yes NO REAR BAR) sway bar down there? Fix that problem with a PERRIN Performance sway bar combo and we promise better cornering, reduced body role and greater control over your suspension. PERRIN Performance™ Sway Bars are bigger in diameter and come with multiple end-link attachments, giving you 5 possible configurations.
How does a sway bar work?
First understand that a tire has flat contact patch. If the contact patch is not parallel to the ground, the contact patch gets smaller. In turn traction is lost. As the car makes its way through a turn, the weight of the car, causes the car to lean. As the car leans, the design of the suspension geometry makes the tires contact patch become unparallel to the ground. In turn loosing traction.
Suspension designers used camber to help counteract this, along with unequal control arms. But a large part of keeping the tire parallel to the ground during cornering is controlling how much the car leans. This is where sway bars come into play. During cornering the sway bar acts to keep the chassis from leaning. In turn this helps keep the tires parallel to the ground. Stiffening up the springs on the car does the same thing, but in turn makes the ride much harsher. Sway bars are like stiff springs but only become effective while cornering.
Swaybars connect both left and right control arms with a torsion bar. As the control arms move up and down together, the bar moves with them. During this state the sway bar has no effect. Only when the control arms move in opposite directions does the sway bar come into play. During a corner, the outside arm moves up and the inside arm moves down, in turn causing the sway bar to twist. The opposing directions of the arms are counteracted by the sway bar and the sway bar tries to keep the arms from moving in opposite directions. In turn keeps the car from leaning less, and give you more traction!
Why do I want this?
That is easy to keep the contact patch as flat to the ground as possible! Both front and rear sway bars do different things to cars. Both front and rear sway bars increase traction to the outside tire (the one with the most load), but a balance of front to rear can change how the car handles.
All cars are designed to have a slight amount of understeer. This is done for safety reasons. Understeer is the effect when you go into a corner, and your turn the wheel, but the car goes straight. This is also known as pushing or plowing. In contrast Oversteer is when you go into a corner, and the car turns more than you steer. This is also described as the rear end feeling like it is sliding out slightly. Too much oversteer and you will spin out in a corner. Too much understeer and the car will not turn through the corner, and go straight off the road.
Generally people prefer neutral handling or a slight amount of oversteer. With the choices in bar sizes and endlink settings, anyone can find the perfect match to their driving style.
Hollow vs. Solid
Given both are designed to produce the same rate or stiffness, they both do the same job. But in order to get a hollow bar to produce the same rate, a very large diameter is needed. And for those wanting something with a high rate or stiffness, you won’t be able to find this in a hollow bar. Another benefit hollow bar makers try to sell is the weight. The difference in weight is very very small. To give an example, a rear WRX PERRIN sway bar weighs 10.8lbs. Even if you remove the entire bar, the savings isn’t much. If weight is that critical, you can always remove your spare and save more weight. All PERRIN sway bars are made with solid 4140 Steel bar. This provides the best in both stiffness and durability, and creates a bar that will last forever.
Sway bar Settings
All PERRIN swaybars comes with multiple endlink connections. This allows the end user to customize the stiffness of the bar. All PERRIN swaybars come with at minimum 2 settings. These 2 settings can provide 3 actual different setting with crossing the endlink connections. Our 3 setting swaybars can provide 5 different setting by doing the same thing. Below are some basic calculations of % change from OEM to PERRIN 19mm and 22mm bars. The crossed endlink calculations are not mentioned below, but can be figured as they will fall in between the rates mentioned. The sway bar settings can allow for significant changes in sway bar functionality, with out having to go buy another size bar.
Included Items:
PERRIN 22mm Rear Swaybar 2008 2009 2010 Impreza
Subaru Mounting Brackets
PERRIN Swaybar Bushings
PERRIN Rear Swaybar Endlinks
Mounting Hardware
Everything you need to convert your Impreza from a non-rear swaybar setup to a PERRIN Rear Swaybar.
The only way to make your car turn, stop or go is if the entire available tire patch is hitting the surface at hand. The factory included what many regard to be a whimsical attempt to increase cornering with puny sway bars on the front and rear. PERRIN™ sees the need for far larger and stronger sway bars and now offers two choices for both ends of your car.
For street enthusiasts that simply want to attack the drive to work with more gusto, the 19mm upgrade is the ideal choice. While dedicated track hounds will delight in the increased snap now available from our 22mm offering. Each size and each end also incorporates 3 adjustment holes to help you custom tailor your suspension to your specific needs and driving habits. Made from solid steel and heavily powder coated to prevent the rigors of salty roads that wreck havoc with less worthy products. All kits include polyurethane pocketed bushings to prevent tedious re-greasing and all necessary hardware for a clean, and painless installation.
Also includes swaybar endlinks to make your new swaybar purchase worthwile! Any upgrade to the sway bars are nearly lost if you chose to reuse the OEM endlinks, since they are rubber on one side. This connection between the sway bar and the control arm is crucial to proper operation. PERRIN™ replaces any and all rubber with 6061 billet aluminum and spherical bearings that can handle almost 9000 lbs to give you the best handling from your new swaybar!!!
By utilizing aluminum the sway bar can respond in a far more linear fashion to cornering forces, while the spherical bearings allow additional articulation under hard cornering. The combination forces and allows the tires to remain in contact with the road, and give you better handling. Simple to install and maintenance free. All include instructions and hardware.
Features:
Look under your 2.5. Go ahead, we’ll wait…. See that there is NO (yes NO REAR BAR) sway bar down there? Fix that problem with a PERRIN Performance sway bar combo and we promise better cornering, reduced body role and greater control over your suspension. PERRIN Performance™ Sway Bars are bigger in diameter and come with multiple end-link attachments, giving you 5 possible configurations.
How does a sway bar work?
First understand that a tire has flat contact patch. If the contact patch is not parallel to the ground, the contact patch gets smaller. In turn traction is lost. As the car makes its way through a turn, the weight of the car, causes the car to lean. As the car leans, the design of the suspension geometry makes the tires contact patch become unparallel to the ground. In turn loosing traction.
Suspension designers used camber to help counteract this, along with unequal control arms. But a large part of keeping the tire parallel to the ground during cornering is controlling how much the car leans. This is where sway bars come into play. During cornering the sway bar acts to keep the chassis from leaning. In turn this helps keep the tires parallel to the ground. Stiffening up the springs on the car does the same thing, but in turn makes the ride much harsher. Sway bars are like stiff springs but only become effective while cornering.
Swaybars connect both left and right control arms with a torsion bar. As the control arms move up and down together, the bar moves with them. During this state the sway bar has no effect. Only when the control arms move in opposite directions does the sway bar come into play. During a corner, the outside arm moves up and the inside arm moves down, in turn causing the sway bar to twist. The opposing directions of the arms are counteracted by the sway bar and the sway bar tries to keep the arms from moving in opposite directions. In turn keeps the car from leaning less, and give you more traction!
Why do I want this?
That is easy to keep the contact patch as flat to the ground as possible! Both front and rear sway bars do different things to cars. Both front and rear sway bars increase traction to the outside tire (the one with the most load), but a balance of front to rear can change how the car handles.
All cars are designed to have a slight amount of understeer. This is done for safety reasons. Understeer is the effect when you go into a corner, and your turn the wheel, but the car goes straight. This is also known as pushing or plowing. In contrast Oversteer is when you go into a corner, and the car turns more than you steer. This is also described as the rear end feeling like it is sliding out slightly. Too much oversteer and you will spin out in a corner. Too much understeer and the car will not turn through the corner, and go straight off the road.
Generally people prefer neutral handling or a slight amount of oversteer. With the choices in bar sizes and endlink settings, anyone can find the perfect match to their driving style.
Hollow vs. Solid
Given both are designed to produce the same rate or stiffness, they both do the same job. But in order to get a hollow bar to produce the same rate, a very large diameter is needed. And for those wanting something with a high rate or stiffness, you won’t be able to find this in a hollow bar. Another benefit hollow bar makers try to sell is the weight. The difference in weight is very very small. To give an example, a rear WRX PERRIN sway bar weighs 10.8lbs. Even if you remove the entire bar, the savings isn’t much. If weight is that critical, you can always remove your spare and save more weight. All PERRIN sway bars are made with solid 4140 Steel bar. This provides the best in both stiffness and durability, and creates a bar that will last forever.
Sway bar Settings
All PERRIN swaybars comes with multiple endlink connections. This allows the end user to customize the stiffness of the bar. All PERRIN swaybars come with at minimum 2 settings. These 2 settings can provide 3 actual different setting with crossing the endlink connections. Our 3 setting swaybars can provide 5 different setting by doing the same thing. Below are some basic calculations of % change from OEM to PERRIN 19mm and 22mm bars. The crossed endlink calculations are not mentioned below, but can be figured as they will fall in between the rates mentioned. The sway bar settings can allow for significant changes in sway bar functionality, with out having to go buy another size bar.
Included Items:
PERRIN 22mm Rear Swaybar 2008 2009 2010 Impreza
Subaru Mounting Brackets
PERRIN Swaybar Bushings
PERRIN Rear Swaybar Endlinks
Mounting Hardware
Everything you need to convert your Impreza from a non-rear swaybar setup to a PERRIN Rear Swaybar.
Okay, word association time -- what comes to mind when you think of the word "Oregon?" Maybe trees, or the people who hug them? Possibly, but if you're a speed freak like us, you probably think more along the lines of "Rally America" and "Perrin Performance." Perrin, a part of the Alta Performance Group, began manufacturing specialized aftermarket parts more than a decade ago. They cater especially to high-power sport compact cars, including Subarus, Evos, and more. Perrin has the heavy-hitters of Japanese all-wheel drive performance covered with parts that are built in the U.S., and just as importantly, built to last. With the full line of Perrin Performance products available, Andy's Auto Sport is here to help turn your car into a beast!
Q: Is an anti-sway bar the same as a sway bar?
A: Anti-sway bar and sway bar are two terms that mean exactly the same thing.
Q: What are sway bars? Why buy a sway bar?
A: Sway bars give your car additional stability. A sway bar is a metal bar that spans the whole entire axle and joins each side of your suspension together. Aftermarket sway bars they are usually thicker than factory ones, which means they will create a more level ride, reducing body roll and under steer. With a new sway bar, you can accelerate into turns instead of braking through them.
Q: Are sway bars available for the front and rear of each vehicle?
A: One sway bar is used to tie the front suspension together, and one is used to tie the rear suspension together, so for maximum suspension upgrade, you could buy a front and rear sway bar. When available, they are often sold in complete sets that include the front and the rear.
Q: How do you install a sway bar?
A: Sway bars are installed by removing your factory end links and sway bar. Re-install the new bushings and position your new sway bar on the vehicle in the OEM location and secure it with the same bolts.
A: Anti-sway bar and sway bar are two terms that mean exactly the same thing.
Q: What are sway bars? Why buy a sway bar?
A: Sway bars give your car additional stability. A sway bar is a metal bar that spans the whole entire axle and joins each side of your suspension together. Aftermarket sway bars they are usually thicker than factory ones, which means they will create a more level ride, reducing body roll and under steer. With a new sway bar, you can accelerate into turns instead of braking through them.
Q: Are sway bars available for the front and rear of each vehicle?
A: One sway bar is used to tie the front suspension together, and one is used to tie the rear suspension together, so for maximum suspension upgrade, you could buy a front and rear sway bar. When available, they are often sold in complete sets that include the front and the rear.
Q: How do you install a sway bar?
A: Sway bars are installed by removing your factory end links and sway bar. Re-install the new bushings and position your new sway bar on the vehicle in the OEM location and secure it with the same bolts.
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