Looking to upgrade your Mazda CX‑5’s handling without breaking the bank? A rear sway bar kit is one of the best bang-for-your-buck modifications you can make. This simple upgrade helps reduce body roll, sharpens cornering response, and improves overall stability — especially during high-speed turns or sudden maneuvers.
In this article, we’ll walk you through the benefits of upgrading your rear sway bar, what to expect during installation, and the top affordable sway bar kits for the CX‑5.
What Does a Rear Sway Bar Do?
A sway bar, also known as an anti-roll bar, links the left and right suspension components to minimize excessive body lean when cornering. Upgrading to a stiffer aftermarket rear sway bar improves:
- Cornering confidence
- Steering responsiveness
- Reduced understeer, especially in front-heavy SUVs
- Flatter ride feel, even during emergency lane changes
For Mazda CX‑5 owners who want sportier driving dynamics, this upgrade offers big performance without a big price tag.
Why Upgrade the Rear Only?
Most of the CX‑5’s factory lean comes from the rear suspension. Adding a stiffer rear bar (while keeping the front stock) reduces understeer and balances the SUV’s handling. This setup is popular for daily drivers who want more agility without sacrificing comfort.
What to Expect During Installation
Installing a rear sway bar is a relatively simple DIY job for anyone with jack stands and hand tools. Here’s a quick breakdown:
Tools You’ll Need:
- 14mm and 17mm sockets
- Torque wrench
- Floor jack + jack stands
Steps:
- Safely raise the rear of the vehicle and remove the wheels.
- Unbolt the factory sway bar and bushings.
- Mount the new bar using the included hardware and bushings.
- Re-torque everything to spec and reinstall the wheels.
⏱️ Estimated time: 45–90 minutes.
Top 5 Budget Rear Sway Bar Kits for Mazda CX‑5
Below are our top picks for affordable, high-quality kits with strong reviews and proven performance benefits.
1. Progress Technology Rear Sway Bar Kit (24mm)
Pros:
✔ Excellent balance of comfort and stiffness
✔ Includes poly bushings and brackets
✔ Reputable U.S. brand
Cons:
✖ Slightly higher price point than others on this list
💰 Price: ~$190
2. Whiteline Adjustable Rear Sway Bar
Pros:
✔ Two stiffness settings for custom tuning
✔ Durable powder-coated finish
✔ Improved rear-end grip
Cons:
✖ Some users report squeaking if not greased properly
💰 Price: ~$175
3. TRQ Rear Stabilizer Bar Kit
Pros:
✔ OEM-style fit
✔ Extremely budget-friendly
✔ Great for mild upgrades
Cons:
✖ Not adjustable
✖ Less performance gain than thicker bars
💰 Price: ~$120
4. MOOG Rear Sway Bar Replacement Kit
Pros:
✔ Trusted name in suspension parts
✔ Includes new bushings
✔ Perfect if just replacing a worn-out factory bar
Cons:
✖ Minimal performance upgrade over OEM
💰 Price: ~$110
5. Godspeed Project Rear Sway Bar (25mm)
Pros:
✔ Aggressive feel
✔ Heavier-duty for spirited drivers
✔ Comes with polyurethane bushings
Cons:
✖ More noticeable change in ride comfort
💰 Price: ~$160
Comparison Table
| Product | Type | Adjustable | Price Range | Ideal For |
|---|---|---|---|---|
| Progress Technology 24mm | Fixed | No | $190 | Best all-around handling + quality |
| Whiteline Adjustable | Adjustable | Yes | $175 | Tuners who want control |
| TRQ Stabilizer Kit | OEM-Style | No | $120 | Budget-friendly factory feel |
| MOOG Replacement | OEM-Style | No | $110 | Worn-out OEM replacement |
| Godspeed Project 25mm | Performance | No | $160 | Sporty daily drivers |
FAQs
Q1: Will a rear sway bar make my ride harsh?
No — if properly sized, a rear sway bar won’t significantly impact ride comfort. Most drivers only notice improved stability during cornering.
Q2: Do I need to upgrade both front and rear sway bars?
Not necessarily. Many Mazda CX‑5 drivers upgrade the rear bar only to reduce understeer. A front bar can be added later if desired.
Q3: Does installing a sway bar affect my warranty?
As long as the installation doesn’t damage other components, most aftermarket sway bars won’t void your warranty. Check with your dealer to be sure.