Steeda Mustang IRS Base Pack 2015-2024+
Product Benefits - Our ONLY "Must Have" Part. Trust us, Just fit it!
- Our IRS Subframe Bushing Support system fills in all factory voids in order to eliminate movement of the IRS subframe
- Utilizes all 4 factory mounting locations, which completely restricts shifting or rotation (Competitors only support 2 locations)
- Practically no added weight to the vehicle
- Uses precision machined Delrin sleeves which adds no NVH and limits vibration to the vehicle
- CNC Machined parts for a precision fit unlike welded and stamped parts with slotted holes
- Aligns AND holds the subframe in place, in all 4 mounting locations
- Easy installation, can be done in under 2 hours
- Standard Fitment on all Steeda Q-Series Mustangs
- Homologated / Certified for European use
- Normally in stock
More cost effective than others on the market to control wheel hop
We combined our ever so popular 555-4438 IRS Alignment Bushes and 555-4437 IRS Subframe Support Bushes kits into a money savings combo kit where you the customer benefits! The S550's subframe mounting holes are very large compared to the subframe mounting bolts. Since there is a large difference in bolt and hole size, the subframe can be mis-aligned from the factory up to 1/2" left to right. The Steeda S550 Mustang IRS Subframe Alignment Kit is made from CNC-machined Delrin to avoid putting two dissimilar metals next to each other, preventing corrosion. Delrin is also less weight than aluminium or steel inserts and therefore keeping performance in mind. The Delrin sleeves slide into the subframe mounting holes, and fill the extra space left between the subframe mount and bolt from the factory therefore eliminating any movement.
Our Steeda S550 / S650 Mustang IRS Subframe Alignment Kit guarantees that the subframe will be bolted to the same location every time it is lowered. Eliminating the need for unnecessary subframe alignments.
These Steeda S550 & S650 Mustang IRS Subframe Bushing Support System for your 2015+ Mustang GT, & EcoBoost, gives the rear end a much more solid feel with no increase in NVH at all. The Steeda IRS Subframe bushings eliminate rear subframe movement notorious in the 2015+ Mustang GT & EcoBoost. A stiffened subframe allows the car to increase traction to the rear wheels and is the first step towards eliminating wheel hop. The Steeda S550 Mustang IRS Subframe Bushing Support System for your 2015+ & 2024+ Mustang GT, Bullitt, Dark Horse, & EcoBoost are easy to install, with basic hand tools. The Steeda IRS bushing kit also does not require any permanent modifications to the car. Also perfect to help control your GT500!
IRS Base Pack - 555-4437, 555-4438
IRS Full Pack - 555-4437, 555-4438, 555-5754
Install Guides:
555-4437 Install Guide NOTE: 555-4437 DOES NOT FIT MACH ONE / GT350
Steeda Tip. For the keen driver we recommend upgrading to our IRS Full Pack which adds the Steeda IRS Rear Subframe Braces for extra connection to the chassis, for enhanced control and driveability.
Warranty Info
Steeda offer a limited lifetime warranty for material and manufacturing defects.
The warranty is for the original purchaser.
WHAT IS NOT COVERED
The following items are not covered under the Limited Warranty:
1. Failure or damage resulting from normal wear and tear, improper installation, repair, abuse, misuse, neglect, negligence, accidents, corrosion, or the alteration or modification of a part by the customer.
2. Failure or damage caused by work not performed by Steeda.
3. Failure or damage caused by a defective part or accessory not installed by Steeda main dealer.
4. Labour for the removal from a vehicle and reinstallation of a part or component sold “over the counter” or “over the internet.”
5. Service adjustments, such as calibration or alignments.
6. Rust or corrosion to parts caused by environmental conditions such as, but not limited to, salt or other caustic chemicals is not covered by Steeda's warranty.
7. Pitting is caused by brake dust, chemical abuse, or lack of maintenance and is not covered by Steeda's warranty.
8. Incidental or consequential damages. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.
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