Improving Ride Comfort on a 2023 Mach-E GT: Rally Springs, Eibach Sway Bars, Bilstein B6 Shocks – My Full Breakdown, Costs, and Impressions

[jobysan05]

Let me start by saying I've had my 2023 Mach-E GT (without Magneride) for about three years now, with around 42k miles on it. I love the performance and EV aspects, but the stock suspension was killing me—horrible rear bounce for passengers, especially on Houston's bumpy streets and freeways. It felt horrible for my wife sitting in the back with our baby and she complained constantly. I wanted to fix the ride comfort so I started reading everything I could find on this forum and super thankful for the folks who shared their experience in this forum (shoutout to markboris for the detailed help on Rally springs, bars and shocks).

My main issues were:

1. The stock GT springs were way too stiff, causing rear passengers to get tossed around.
2. Insufficient damping made everything feel uncoordinated, with lots of body roll and bobblehead effect.
3. Noises from worn shocks (left front and right rear went bad around 40k miles, clunks over bumps).

I first upgraded the suspension with Rally springs, camber bolts for alignment and Eibach sway bars since I didn't know two of my shocks went bad until the mechanic noticed it during the installation. I then replaced the bad shocks with Bilstein B6 (not here in USA, ordered from Germany) and upgraded to Whiteline sway bar links. I'll break it down step by step, including where I got it done, costs, and my experiences.

1. Ford Mach-E Rally Springs

I swapped the stock GT springs for OEM Rally ones. This was the biggest game-changer for bounce—reduced it by about 60% right away, making the ride much smoother over imperfections without feeling floaty.

• Parts: Front: 2x RK9Z-5310-A (~$90 each), Rear: 2x RK9Z-5560-B (~$90 each). Ordered from RFD Autoparts online.
• Cost: ~$390 for parts + shipping.
• Install: Done at 4Low Concepts in Houston. Labor ~$985 (including alignment with camber bolts).
• Ride Impressions: Immediate softness—bumps feel dulled, rear passengers no longer complain as much. Added ~1.5" height, which helps with entry/exit but looks a bit taller (not a con for me). Bounce is way tamer, especially above 30 mph.

2. Eibach Sway Bars

To control any extra body roll from the Rally lift, I added these from recommendations.

• Parts: E40-35-054-01-11 (front and rear kit, ~$550).
• Cost: ~$570 parts + shipping.
• Install: Same shop as above, included in the total price above
• Ride Impressions: Handling stayed sharp, but ride felt even more composed—no mushiness. Paired perfectly with Rally for urban driving.

3. Camber Bolts

Needed these for proper alignment after the height change

• Parts: Ordered from Amazon. Specialty Products Company 81280 EZ Cam XR.
• Cost: ~$30.

4. Whiteline Sway Bar Links

Upgraded from stock to these heavy-duty ones for better connection to the Eibach bars as per the mechanic's recommendation

• Parts: Ordered from Ebay, Whiteline KLC167A (pair for front), KLC180-155 (pair for rear)
• Cost: ~$400.

5. Bilstein B6 Shocks/Struts

Since I had to replace my two worn shocks, I was contemplating whether to get OEM shocks or go with all B6 shocks from NateZhao post. But since I was really focused on max comfort and plan to keep my car for another 3-4 years. I decided to replace all four with B6 for better damping.

• Parts: Front left: 22-343246, Front right: 22-343253, Rears: 2x 24-343275. Ordered from Tunershop in Europe (took ~2 weeks with shipping).
• Cost: ~$710 parts + ~$300 shipping/duties + 131 (Tariff) (total ~$1,141 ).
• Install: 4Low Concepts again
• Ride Impressions: Definitely firmer than OEM, which cut bounce even more (rear feels planted now), but the handling is "tougher", and overall stability improved (less pitching on highways).

Total Cost: ~$4200 (parts ~$2624, labor/alignment ~$1580, first time was springs+bars+alignment, second time was shocks+alignment).
I could have avoided the second trip and saved money if I did everything at once with the shop. I should have done a diagnosis first

Pros:

• Ride is transformed—smoother, less bouncy for rear passengers
• Handling is sharper without being harsh.
• Durable upgrades (B6 should last 50k+ miles).

Cons:

• Slight height increase from Rally
• Overall firmer with B6/links—enjoyable for daily driving, but if you prefer ultra-soft, might be too much.
• Import costs/delays for B6 (worth it over OEM, which wear fast).

If you're dealing with bounce or worn shocks, start with Rally springs and Eibach sway bars. This is my top recommendation if you are on a budget and then add the B6 shocks if you want max bounce elimination. Thanks to the forum for the inspo! Happy to answer questions

Side note: I also used green grease on the Eibach bushings during install to prevent squeaks

Eibach front and rear bars

OEM sway bar

Sway bar installed

B6 shock next to OEM shock

Stock sway bar links

Whiteline sway bar links installed

OEM springs

Rally Springs installed

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[GT-Papa]

Great writeup! My 21 GTPE (with Magnaride) also rides like a lumber wagon and I'm strongly considering the Rallye springs and Eibach bars. Are the camber bolts necessary or just nice-to-have?

 

[markboris]

Great writeup! My 21 GTPE (with Magnaride) also rides like a lumber wagon and I'm strongly considering the Rallye springs and Eibach bars. Are the camber bolts necessary or just nice-to-have?

They are not necessary but if you don't buy those, then you need to buy 4-5/8" x 3 1/2" bolts, 4-5/8" nuts and 8-5/8" washers. The front does not have an adjustable camber and you need either adjustable camber bolts that Joby (and I) have recommend or regular bolts like I listed above. The camber bolts just make it easier for the alignment person to get the car into spec.

 

[markboris]

Let me start by saying I've had my 2023 Mach-E GT (without Magneride) for about three years now, with around 42k miles on it. I love the performance and EV aspects, but the stock suspension was killing me—horrible rear bounce for passengers, especially on Houston's bumpy streets and freeways. It felt horrible for my wife sitting in the back with our baby and she complained constantly. I wanted to fix the ride comfort so I started reading everything I could find on this forum and super thankful for the folks who shared their experience in this forum (shoutout to markboris for the detailed help on Rally springs, bars and shocks).

My main issues were:

1. The stock GT springs were way too stiff, causing rear passengers to get tossed around.
2. Insufficient damping made everything feel uncoordinated, with lots of body roll and bobblehead effect.
3. Noises from worn shocks (left front and right rear went bad around 40k miles, clunks over bumps).

I first upgraded the suspension with Rally springs, camber bolts for alignment and Eibach sway bars since I didn't know two of my shocks went bad until the mechanic noticed it during the installation. I then replaced the bad shocks with Bilstein B6 (not here in USA, ordered from Germany) and upgraded to Whiteline sway bar links. I'll break it down step by step, including where I got it done, costs, and my experiences.

1. Ford Mach-E Rally Springs

I swapped the stock GT springs for OEM Rally ones. This was the biggest game-changer for bounce—reduced it by about 60% right away, making the ride much smoother over imperfections without feeling floaty.

• Parts: Front: 2x RK9Z-5310-A (~$90 each), Rear: 2x RK9Z-5560-B (~$90 each). Ordered from RFD Autoparts online.
• Cost: ~$390 for parts + shipping.
• Install: Done at 4Low Concepts in Houston. Labor ~$985 (including alignment with camber bolts).
• Ride Impressions: Immediate softness—bumps feel dulled, rear passengers no longer complain as much. Added ~1.5" height, which helps with entry/exit but looks a bit taller (not a con for me). Bounce is way tamer, especially above 30 mph.

2. Eibach Sway Bars

To control any extra body roll from the Rally lift, I added these from recommendations.

• Parts: E40-35-054-01-11 (front and rear kit, ~$550).
• Cost: ~$570 parts + shipping.
• Install: Same shop as above, included in the total price above
• Ride Impressions: Handling stayed sharp, but ride felt even more composed—no mushiness. Paired perfectly with Rally for urban driving.

3. Camber Bolts

Needed these for proper alignment after the height change

• Parts: Ordered from Amazon. Specialty Products Company 81280 EZ Cam XR.
• Cost: ~$30.

4. Whiteline Sway Bar Links

Upgraded from stock to these heavy-duty ones for better connection to the Eibach bars as per the mechanic's recommendation

• Parts: Ordered from Ebay, Whiteline KLC167A (pair for front), KLC180-155 (pair for rear)
• Cost: ~$400.

5. Bilstein B6 Shocks/Struts

Since I had to replace my two worn shocks, I was contemplating whether to get OEM shocks or go with all B6 shocks from NateZhao post. But since I was really focused on max comfort and plan to keep my car for another 3-4 years. I decided to replace all four with B6 for better damping.

• Parts: Front left: 22-343246, Front right: 22-343253, Rears: 2x 24-343275. Ordered from Tunershop in Europe (took ~2 weeks with shipping).
• Cost: ~$710 parts + ~$300 shipping/duties + 131 (Tariff) (total ~$1,141 ).
• Install: 4Low Concepts again
• Ride Impressions: Definitely firmer than OEM, which cut bounce even more (rear feels planted now), but the handling is "tougher", and overall stability improved (less pitching on highways).

Total Cost: ~$4200 (parts ~$2624, labor/alignment ~$1580, first time was springs+bars+alignment, second time was shocks+alignment).
I could have avoided the second trip and saved money if I did everything at once with the shop. I should have done a diagnosis first

Pros:

• Ride is transformed—smoother, less bouncy for rear passengers
• Handling is sharper without being harsh.
• Durable upgrades (B6 should last 50k+ miles).

Cons:

• Slight height increase from Rally
• Overall firmer with B6/links—enjoyable for daily driving, but if you prefer ultra-soft, might be too much.
• Import costs/delays for B6 (worth it over OEM, which wear fast).

If you're dealing with bounce or worn shocks, start with Rally springs and Eibach sway bars. This is my top recommendation if you are on a budget and then add the B6 shocks if you want max bounce elimination. Thanks to the forum for the inspo! Happy to answer questions

Side note: I also used green grease on the Eibach bushings during install to prevent squeaks

Eibach front and rear bars

OEM sway bar

Sway bar installed

B6 shock next to OEM shock

Stock sway bar links

Whiteline sway bar links installed

OEM springs

Rally Springs installed

Great write up Joby! Very happy to hear all went well and you and your family are finally enjoying the ride. Just added you and your review to the list of members that have installed and reviewed the Rally springs and Eibach bars.

https://www.macheforum.com/site/thr...ings-eibach-sway-bars-mod-members-list.52730/

 

[jksu]

bilstein shocks are solid and definitely should last. i loved the bilstein/eibach pro-kit springs & swaybar upgrade on my old car. if i didn't have magneride, i'd do the same upgrade you did.

my only wish is the rally springs were: 1) progressive like eibach springs rather than linear, or 2) a touch higher spring rate, or maybe 0.25-0.5" shorter. it can feel tad floaty on bigger bumps - the type you get launched a bit and when you land, all that extra travel or softness in the springs is a bit too overwhelming so it losses that planted feeling. it's more noticeable if there's a bigger bump during a sweeping turn and you're taking it fast.... really feel the sway bars flatten things out when you "land" and the tires hook back onto the road and hold traction.

still 100x better than the stock GT springs so definitely not going back.

 

[phil]

Ride Impressions: Immediate softness—bumps feel dulled, rear passengers no longer complain as much.

Thanks for the report!

What kinds of complaints are you still getting? (I too have a back seat passenger who is a frequent complainer, and I am considering some of these upgrades.)

 

[jobysan05]

Thanks for the report!

What kinds of complaints are you still getting? (I too have a back seat passenger who is a frequent complainer, and I am considering some of these upgrades.)

With just the rally springs, the bounciness was noticeably better but you could still feel it a little. After installing the B6 too, it has been a night and day difference

 

[RMoore]

Great write up. I'm waiting for delivery of the Eibach sway bars and the Rally springs and then off to the shop.

 

[NateZhao]

With just the rally springs, the bounciness was noticeably better but you could still feel it a little. After installing the B6 too, it has been a night and day difference

Great write up, Joby!

I’m so glad to hear you have such a high opinion of the B6 and that you’re enjoying it. I might be the first person in the world to install them, and you’re the first in the US! Even with the stock springs, I was very impressed with the B6. It drastically reduced the body bounce, though as a trade-off, those large bounces were transformed into a more minor and detailed road feel. A friend of mine (who used to own a Focus RS) took a ride and said the Mach-E feels like a true performance car now!

If you’re looking for a better ride, the suspension expert @markboris has already given us the answer: don’t hesitate to get the Rally springs. The B6 is more like the icing on the cake for cars without Magneride—it takes both the ride quality and handling to the next level.

Now, I need to figure out how to get the Rally springs to China.

 

[ipca204]

AHHHHHHHHHHH< I hate all you people doing this! I want to do it so bad but it doesn't make sense for me to drop a couple grand with only 19 months left on my lease transfer i just did...I need to find a clean 2024 or 2025 in Arizona so I can do it, but they are still pretty sparse compared to IL. I am keeping my eye out for a low mileage 2024 as I could care less about the heat pump for my Az car, but again not too many around. Now if you want an overpriced 2023, I know where all the Shelby Mach-e's are...lol

 

[emichnov]

I have 64k miles on my 2022 Premium extended range AWD. Mechanic inspected it today and didn't see anything in particular wrong with the struts and the shocks. Is it worth bothering to replace them ? They couldn't give me any typical lifespan for these components ("we typically replace them when they fail".)

Same question with the stock sway bard links. Any reason to replace them proactively?

 

[markboris]

I have 64k miles on my 2022 Premium extended range AWD. Mechanic inspected it today and didn't see anything in particular wrong with the struts and the shocks. Is it worth bothering to replace them ? They couldn't give me any typical lifespan for these components ("we typically replace them when they fail".)

Same question with the stock sway bard links. Any reason to replace them proactively?

My personal opinion is the same as your Mechanic's. I replace them when they fail. There are members here with less miles than you have and have had them fail. There are members here with well over 100K miles are are still running the original ones. If you plan to keep the car to well over 100K miles, maybe you should think about replacing them. As far as the bar end links, same thing. They are very easy to replace and they don't seem to go out too often. You will get all kinds of opinions on this but that's mine.

 

[txaggies07]

Let me start by saying I've had my 2023 Mach-E GT (without Magneride) for about three years now, with around 42k miles on it. I love the performance and EV aspects, but the stock suspension was killing me—horrible rear bounce for passengers, especially on Houston's bumpy streets and freeways. It felt horrible for my wife sitting in the back with our baby and she complained constantly. I wanted to fix the ride comfort so I started reading everything I could find on this forum and super thankful for the folks who shared their experience in this forum (shoutout to markboris for the detailed help on Rally springs, bars and shocks).

My main issues were:

1. The stock GT springs were way too stiff, causing rear passengers to get tossed around.
2. Insufficient damping made everything feel uncoordinated, with lots of body roll and bobblehead effect.
3. Noises from worn shocks (left front and right rear went bad around 40k miles, clunks over bumps).

I first upgraded the suspension with Rally springs, camber bolts for alignment and Eibach sway bars since I didn't know two of my shocks went bad until the mechanic noticed it during the installation. I then replaced the bad shocks with Bilstein B6 (not here in USA, ordered from Germany) and upgraded to Whiteline sway bar links. I'll break it down step by step, including where I got it done, costs, and my experiences.

1. Ford Mach-E Rally Springs

I swapped the stock GT springs for OEM Rally ones. This was the biggest game-changer for bounce—reduced it by about 60% right away, making the ride much smoother over imperfections without feeling floaty.

• Parts: Front: 2x RK9Z-5310-A (~$90 each), Rear: 2x RK9Z-5560-B (~$90 each). Ordered from RFD Autoparts online.
• Cost: ~$390 for parts + shipping.
• Install: Done at 4Low Concepts in Houston. Labor ~$985 (including alignment with camber bolts).
• Ride Impressions: Immediate softness—bumps feel dulled, rear passengers no longer complain as much. Added ~1.5" height, which helps with entry/exit but looks a bit taller (not a con for me). Bounce is way tamer, especially above 30 mph.

2. Eibach Sway Bars

To control any extra body roll from the Rally lift, I added these from recommendations.

• Parts: E40-35-054-01-11 (front and rear kit, ~$550).
• Cost: ~$570 parts + shipping.
• Install: Same shop as above, included in the total price above
• Ride Impressions: Handling stayed sharp, but ride felt even more composed—no mushiness. Paired perfectly with Rally for urban driving.

3. Camber Bolts

Needed these for proper alignment after the height change

• Parts: Ordered from Amazon. Specialty Products Company 81280 EZ Cam XR.
• Cost: ~$30.

4. Whiteline Sway Bar Links

Upgraded from stock to these heavy-duty ones for better connection to the Eibach bars as per the mechanic's recommendation

• Parts: Ordered from Ebay, Whiteline KLC167A (pair for front), KLC180-155 (pair for rear)
• Cost: ~$400.

5. Bilstein B6 Shocks/Struts

Since I had to replace my two worn shocks, I was contemplating whether to get OEM shocks or go with all B6 shocks from NateZhao post. But since I was really focused on max comfort and plan to keep my car for another 3-4 years. I decided to replace all four with B6 for better damping.

• Parts: Front left: 22-343246, Front right: 22-343253, Rears: 2x 24-343275. Ordered from Tunershop in Europe (took ~2 weeks with shipping).
• Cost: ~$710 parts + ~$300 shipping/duties + 131 (Tariff) (total ~$1,141 ).
• Install: 4Low Concepts again
• Ride Impressions: Definitely firmer than OEM, which cut bounce even more (rear feels planted now), but the handling is "tougher", and overall stability improved (less pitching on highways).

Total Cost: ~$4200 (parts ~$2624, labor/alignment ~$1580, first time was springs+bars+alignment, second time was shocks+alignment).
I could have avoided the second trip and saved money if I did everything at once with the shop. I should have done a diagnosis first

Pros:

• Ride is transformed—smoother, less bouncy for rear passengers
• Handling is sharper without being harsh.
• Durable upgrades (B6 should last 50k+ miles).

Cons:

• Slight height increase from Rally
• Overall firmer with B6/links—enjoyable for daily driving, but if you prefer ultra-soft, might be too much.
• Import costs/delays for B6 (worth it over OEM, which wear fast).

If you're dealing with bounce or worn shocks, start with Rally springs and Eibach sway bars. This is my top recommendation if you are on a budget and then add the B6 shocks if you want max bounce elimination. Thanks to the forum for the inspo! Happy to answer questions

Side note: I also used green grease on the Eibach bushings during install to prevent squeaks

Eibach front and rear bars

OEM sway bar

Sway bar installed

B6 shock next to OEM shock

Stock sway bar links

Whiteline sway bar links installed

OEM springs

Rally Springs installed

Tunershop is showing $1450 now for the 4 shocks including taxes, shipping, and duties. I wish these prices hadn't spiked so much.

 

[McSquashy]

Awesome writeup, Joby. Thank you!

With only 17,000 miles on the OD, I can't really justify the cost to import the B6s. That said, I do have the Eibach bars sitting in my garage, and I plan to order the Rally springs soon.

Out of curiosity, what setting did you use on the front sway bar?

 

[RMoore]

Awesome writeup, Joby. Thank you!

With only 17,000 miles on the OD, I can't really justify the cost to import the B6s. That said, I do have the Eibach bars sitting in my garage, and I plan to order the Rally springs soon.

Out of curiosity, what setting did you use on the front sway bar?

I'll let Joby answer for himself, but to provide another data point since I recently had both Rally spring and Eibach sway bars installed, I went with the rec that @markboris provided and had them install the sway bars on the firmer of the two settings. This was based on 1) I don't drive overly aggressively, and 2) I have reasonably grippy tires (Michelin CrossClimate2's).

As you may be aware, a firmer front sway bar lessens oversteer but can introduce understeer, though the latter is less likely unless you really push the car in corners and have less grippy tires. Note: edited above to read “less likely” instead of likely.

Addendum: I'll provide a review soon, but I'll say that the car's handling and feel (including way less rear bounce) with these mods is really vastly improved.

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