Model Y Rear Sway Bar

[TGuy2024]

I am looking at rear sway bar options for my MYLR. I came across this:

I am guessing Performance Y gets a 25.2mm rear sway while others get a 23.6mm rear sway? Has anyone gone from a nonperformance sway to a performance one?

I am trying to go OEM+ route and nothing aggressive while reducing understeer. From my previous cars, I always upgraded the rear to a thicker bar and loved the balance.

From the looks of it, are rear sway bars on these cars not difficult to install?

 

[QtownTaxiGreg]

Skinny one RWD.

Others will be LR / P. No idea which is which.

Best enquire with vendor but looks to me like probably less difference in sway when they are same diameters. Maybe not any difference.

 

[TGuy2024]

Skinny one RWD.

Others will be LR / P. No idea which is which.

Best enquire with vendor but looks to me like probably less difference in sway when they are same diameters. Maybe not any difference.

I beleived the Performance always had a thicker rear bar than the rest....?

 

[TGuy2024]

In that case, what would be a good aftermarket rear bar that would work for me?

 

[cosmoworks]

I can confirm that my MYP rear bar is the thicker one. I measured it at 25.4mm at the middle when I pulled my OEM one out. Sway bars are extremely easy to install. You'll spend more time pulling the darn plastic underbody covers off than you will installing the bars.

 

[TGuy2024]

I can confirm that my MYP rear bar is the thicker one. I measured it at 25.4mm at the middle when I pulled my OEM one out. Sway bars are extremely easy to install. You'll spend more time pulling the darn plastic underbody covers off than you will installing the bars.

What was your replacement?

 

[tom @ eas]

I run the Unplugged Front/Rear Adjustable Swaybars on my MYP:

You can see more in our Flickr album here: Unplugged Adjustable Front & Rear Swaybars for Tesla Model Y

 

[TGuy2024]

They only sell as a set? Won't sell just the rear one?

 

[tom @ eas]

They only sell as a set? Won't sell just the rear one?

Unplugged sells Front/Rear as a set only, but there are other brands that offer individually:

Blox Racing - Sway Bars - Tesla Model 3/Model Y

BLOX Racing sway bars are designed and manufactured to greatly improve the vehicle's handling, reduce body roll, as well as, increase the vehicle’s lateral stiffness. Each sway bar is made from chromium steel and feature precision forged ends and exclusive polyurethane bushings that eliminate...

europeanautosource.com

Whiteline - Adjustable Sway Bars - Tesla Model 3/Model Y

Engineered to 'Activate More Grip', sway bars are principally designed to reduce body roll or sway. By reducing body roll, lateral loads are spread more evenly across the tires thereby increasing cornering grip and improving outright performance. This Whiteline sway bar = more grip = better...

europeanautosource.com

aFe Power - CONTROL Sway Bars - Tesla Model 3/Model Y

aFe CONTROL believes anyone can provide you with a stiff swaybar, but to provide a perfect balance is a whole other story. By pairing the proper sized bar to the front and rear, we can offer increased roll stiffness without upsetting the vehicle's natural balance and traction control systems. We...

europeanautosource.com

Eibach - Anti-Roll Stabilizer Bars - Tesla Model 3/Model Y

Complete your Model 3/Model Y suspension upgrade with an Eibach ANTI-ROLL-KIT. Our anti-roll bars allow critical fine-tuning of your handling characteristics by reducing body roll through increased design stiffness over stock bar. The result: increased handling and cornering grip in any...

europeanautosource.com

 

[TGuy2024]

Great post with all those links!

I notice some of those aftermarket rear bars are skinner than the stock rear bar for the Y. How do they work?

 

[cosmoworks]

TGuy2024 - I have the Unplugged bars as well. The unplugged rear I measured at 27.2mm in the middle. They feel slightly firmer than OEM MYP in the middle setting.

 

[awd_rails]

They only sell as a set? Won't sell just the rear one?

If you go to the Unplugged Performance website, under the Model 3 suspension, they do offer just the rear bar. My understanding is that the rear bar between the M3 and MY are the same in terms of fitment (difference in diameter size). You may want to call to confirm with them, but I suspect that the Race & Competition bar (the site would not specify the exact measurement, just that it "exceeds 25mm") offered on the M3 are the same as the ones they offer for the MY rear, but only as a set. The UP front are the same diameter for the M3 and MY at ~31mm, but the UP MY rear measures ~27mm. I suspect that the "exceeds 25mm" for that UP M3 rear bar is the same one they use for the UP MY set.

 

[QtownTaxiGreg]

Great post with all those links!

I notice some of those aftermarket rear bars are skinner than the stock rear bar for the Y. How do they work?

You might be looking at the wrong data. Or assuming everyone wants stiffer when some want a bit more rolly poly offroad.

If not I can tell you how they could work. Not all steel is equal. A skinnier bar would need a much higher spring modulus though.

 

[TGuy2024]

I emailed Unplugged Performance, let's see if I hear anything back.

 

[TGuy2024]

If you go to the Unplugged Performance website, under the Model 3 suspension, they do offer just the rear bar. My understanding is that the rear bar between the M3 and MY are the same in terms of fitment (difference in diameter size). You may want to call to confirm with them, but I suspect that the Race & Competition bar (the site would not specify the exact measurement, just that it "exceeds 25mm") offered on the M3 are the same as the ones they offer for the MY rear, but only as a set. The UP front are the same diameter for the M3 and MY at ~31mm, but the UP MY rear measures ~27mm. I suspect that the "exceeds 25mm" for that UP M3 rear bar is the same one they use for the UP MY set.

So this:

Tesla Model 3 Adjustable Front and Rear Sway Bar Set

Developed in conjunction with development driving by Randy Pobst, the Unplugged Performance adjustable sway bar system is an easily felt upgrade to the Model 3’s handling

unpluggedperformance.com

Correct?

 

[QtownTaxiGreg]

I know you're beside yourself with anticipation of your racy new suspension but make sure you are ordering for a MYLR not a 3 because the question was which Model 3 do you own and the answer is "#^^?#!"

Go back and do over.

 

[QtownTaxiGreg]

On the page from Unplugged under "Fits these Teslas" it is all Model 3 and no Model Y. Dunno about you but I tend to believe manufacturers when they tell me stuff.

 

[tom @ eas]

Great post with all those links!

I notice some of those aftermarket rear bars are skinner than the stock rear bar for the Y. How do they work?

Targeted for Model 3, but will fit Model Y. You'll see sizes. adjustable vs non-adjustable all over the board, as driving styles and preferences differ among owners.

I don't want to to install a set of swaybars and expect rail-like handling out of the box. IMHO, a proper coilover setup will not only offer a much better ride/feel, but outperform leaps & bounds of what swaybars can offer.

 

[TGuy2024]

I am not a track guy.

In my previous FWD car, I switched to the skinniest possible front bar and a thick rear bar - it drove amazingly for many years.
In my last BMW, I kept the stock front non-sport bar and ran an M3 rear bar in the back - Again, amazing balance...used for many years

Trying to see if I can balance my MY a bit more also...

 

[tom @ eas]

I am not a track guy.

In my previous FWD car, I switched to the skinniest possible front bar and a thick rear bar - it drove amazingly for many years.
In my last BMW, I kept the stock front non-sport bar and ran an M3 rear bar in the back - Again, amazing balance...used for many years

Trying to see if I can balance my MY a bit more also...

It's slightly beneficial in the MY due to its taller height, but as a first mod - won't feel much performance gains as changing wheels/tires or better suspension components like coilovers, harder bushings or even adjustable control arms.