S550 IRS Subframe Support Braces Installation - Steeda

These support braces will help with cornering stability and eliminating wheel hop without adding any NVH (noise vibration harshness). Fits all 2015-2017 Mustangs (excluding convertibles).

With the release of the new S550 Mustang, Steeda knew that addressing the IRS system would be a top priority. Being the first production Mustang with an IRS since the 03/04 Cobra's, we knew there would be a great opportunity to capitalize on Ford's new piece by giving it the Steeda advantage. As with any suspension system, deflection is an issue if it's present. Anytime a piece is moving, twisting or vibrating when it should be stationary is a major problem. One of the areas team Steeda wanted to focus on was the rear IRS subframe.

As you have seen with our IRS Subframe Bushing Support System, it limits the movement of the subframe by filling in the voids of the OE bushings. With Steeda's IRS Subframe Support Braces, we have taken the S550 rear suspension to another level!

Our Steeda S550 Mustang Rear IRS Subframe Braces for 2015-2017 Mustang GT, GT350, EcoBoost, and V6 (non-convertible) is built in-house from 4130 chrome moly steel and powdercoated silver metal flake, this part isn't only strong - it also looks great under your new Mustang! What we did was tie together 3 very important points on the S550 chassis. We utilized existing threaded holes in the rocker panel (the strongest part of the body) and connected that to the front mounting location of the IRS subframe and the rear mount of the lower control arm and toe link. Connecting these 3 points together not only adds rigidity that was lacking in the rear, but also more control of the whole car.

Also, unlike competitors kits that only replace the factory bracket, our Steeda kit supports that bracket while connecting to 2 additional locations, therefore providing twice the support! The best part about this kit is it uses all existing holes in the chassis so the car doesn''t have to be modified in any way and adds no NVH whatsoever.

-Better handling for more stable cornering
-Limits IRS sub frame movement
-No permanent modifications necessary
-No added NVH
-50% more connecting points
-Reduces wheel hop
-Lifetime warranty
-Installation does not require removal of cradle

Part Number:
555 5754

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#SubFrameBraces #StoptheHop #MustangIRS #MustangSuspension #SuspensionGeometry #Steeda #SpeedMatters

[peterpeters]

The right side support brace is much harder to install on the 2016 modeled GT's and you will definitely need help! I also installed these with the bushings and noticed that the ride comfort isn't as good as stock??? I thought it wasn't suppose to affect the ride comfort?

[onlya_]

Is it possible to have the cradle lockouts and these installed together because I know you normally have to replace the sheet steel where it can flex some ? So would I have to pick one or the other ? I’m assuming the streeda brace would have more bracing force but I already have the irs lockouts ready to install

[LalwaBhaiTales]

Convertibles have a similar brace from factory

[mannyv.]

My car has boss 302 x pipe with side exit
Can I run this with that setup?

[stevemartyn]

Is it necessary to add cradle lock out before installing the subframe brace

[CapELarry]

Hey guys. My 2016 GT already has your jacking rails. Can I have both installed?

[gigi]

My right side brace touches the urs blue bolt is that ok?