Give your 2015-2019 Mustang the proven performance of Steeda manufactured suspension parts. This Steeda Mustang Ultimate IRS 'Stop the Hop' Package for your 2015+ Mustang GT, EcoBoost, or V6 is designed to provide increased traction, stiffen the IRS subframe, reduce wheel hop, and improve overall handling characteristics.
Which "Stop the Hop" Kit is for you?
Reduces wheel hop Our IRS 'Stop the Hop' Package addresses wheel hop issues notorious with the new 2015 Mustang. The Steeda IRS Subframe Bushing Support System helps with rear subframe deflection which is a direct cause of wheel hop. These bushing supports stiffen the rear subframe allowing the car to increase traction to the rear wheels. In conjunction with the bushing we also include our IRS Subframe Alignment Kit, which ensures your subframe is directly aligned to your chassis, and results in straight launches off the line.
No added NVH Our Steeda Vertical Links are far superior to the stock vertical links on your S550 Mustang. They feature billet steel bushing sleeves and spacers, providing less deflection than the rubber bushings in the stock links, without increasing NVH. The strength of the billet that the Steeda Vertical Links are made of will provide a more solid feel to your suspension and will not flex under load.
Limits IRS sub frame movement Our Steeda Mustang IRS Subframe Support Braces tie this Steeda Stage 3 Handling package together. These quality 4120 chrome moly steel braces are engineered to connect 3 very important points on the S550 chassis. The result of this solid connection is added rigidity that lacks in the rear of the 2015-2019 Mustang. By stiffening the connections of the rear of the chassis, this one component is able to limit IRS subframe movement, reduce wheel hop, and improve handling during cornering.
Improves vehicle handling Our Steeda Adjustable Rear Toe Links improve the handling characteristics and improve your vehicle's overall handling response. These toe links have a large range of adjustability and adjustments can be made while they're installed on the car.
Package Includes
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555-4437
- 2015 Steeda Mustang IRS Subframe Bushing Support System
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555-4438
- 2015 Steeda Mustang IRS Subframe Alignment Kit
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555-4121
- 2015 Steeda Mustang Billet Aluminum Vertical Links
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555-5754
- 2015 Steeda Mustang IRS Subframe Support Braces
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555-4120
- 2015 Steeda Mustang Adjustable Rear Toe Links
NOTE: Steeda IRS Subframe Support Braces Will Not Fit Convertible
Add the Steeda S550 Mustang Rear Lower Control Arm Spherical Bearings to further control toe and reduce deflection under hard launches!
Purchase your Steeda Mustang Ultimate IRS 'Stop the Hop' Package for your 2015+ Mustang GT, EcoBoost, or V6 at Steeda Autosports today!
See this kit in action on our Steeda Q500!
Notice how composed our Q500 is throughout this turn at Palm Beach International Raceway.
Product Benefits
- Improves vehicle handling
- On-car toe adjustability
- Improves suspension compliance
- Increases traction
- Aligns subframe to chassis
- Limits IRS sub frame movement
- Reduces wheel hop
- No added NVH
Hey guys this is John from Steeda. I want to get guys a little more info today on our Stop the Hop Kits. We've got three available now including our new Stop the Hop Enthusiast package. Let me go through them all individually.
We're gonna start with our Stop the Hop Starter Kit. Now this kit includes our Steeda Subframe Braces which are these right here. They help eliminate lateral movement in the subframe itself and they link it to the chassis more effectively.
We've also got our Steeda Subframe Alignment Kit. Now these dowels right here they fill the voids between the stock bolts and subframe. As they're a little bit different size they can have up to a quarter inch of movement in most cases in any direction. This helps keep the rear end centered every time under the car and to close out the starter kit we've got the Subframe Bushing Support System. What these do is they fill the voids in stock bushings and that helps to control the deflection and the oscillation of the bushings under a hard launch. It leads to more consistency and less wheel hop. Now if you want to turn the starter kit into an enthusiast kit, move in and move towards our Steeda Lower Control Arm Spherical Bushings. We found that up two degrees of movement is found in the bushing under a hard launch and this doesn't allow that. It so it's going to lead again to more consistent launches and less wheel hop and we found our Steeda Stop the Hop Ultimate Kit. What this is is it builds on the starter kit and includes our new Steeda Toe Links and these help control the tow on the car. They're a lot stronger than a factory pieces. They don't have as much movement or flex to them and we got our CNC machine Steeda Vertical Links. These are one piece CNC design with a very large bushing in them. We offer it with urethane or delrin. Depending on how stiff you want them and what that means is, it helps to stop binding which we found in a stock intercoaling which is what Ford calls it and not binding actually creates an artificial spring rate which changes as the increased movement on the rear axles and that leads to a lot of wheel hop issues and inconsistence. These are going to eliminate that problem and if you want to add it the spherical bushings to this kit you've gotta drop-down on our web site. Just let our performance experts know. You can also add our Steeda differential bushing insert system to any of these kits and you really get the ultimate control over the rear end on your drag car.
Now if you've got any questions about your project, need some tech advise we go by the motto of Speed Matters. It matters to us, it matters to you. We want to help you guys get on the track have fun turn some great results. It's what we've been doing for 30 years. Give our performance experts a call. We'll be more than happy to help you out. Thanks for watching I'll see you guys soon.
Steeda S550 Mustang 'Stop the Hop' Starter Kit (2015-2019)
Part Number: 555 4455
Steeda S550 Mustang 'Stop the Hop' Enthusiast Kit (2015-2019)
Part Number: 555 4456
Steeda Mustang Ultimate IRS 'Stop the Hop' Package All (2015-2019)
Part Number: 555 2129
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