Decided to write this review, since I couldn’t really find too much feedback on this forum for these coilovers. Saw this thread HERE about the coilovers with different sized tires, but decided to start a new thread about just the coilovers.
When the box first arrived, I was upset to find the label showing a part number and description for a model 3 AWD (p/n VSGP4-C1AA3). Turns out after searching on TEIN’s website, the model 3 AWD and the model Y share the same part number.
The bad part is the instruction manual that’s in the box is only for the model 3 AWD, and not for the Model Y. So before installing, make sure to set the A/B/C/D dimensions to the model Y, as they don’t come to these settings out of the box!
Model Y dimensions from TEIN’s website for my model is listed as: “FRONT:A/B/C/D=134/42/457/365, REAR:A/B/C/D=213/-/366/HAS 34. If these dimensions are confusing, the manual shows pictures as to what each of these settings refers to for the adjustments.
Once settings are set, install is relatively straight forward. Because these coilovers come with their own top hats, the install is super easy – and you don’t have to mess around with coil spring compressors. I won’t detail the steps of install, but there are a couple of videos online on how to install with torque values.
Onto the install….
Front stock suspension pops right out. I didn’t bother with removing the front control arm carrier as shown in the video link I provided. You can just remove the stock shock top hat 13mm bolts then muscle the stock control arm up and out of the way to drop the OEM suspension out.
Front installed:
I played around with height adjustment, but I ended up with a “B” value of 47mm. The default TEIN starting point is 42mm, but it was too low for my taste. The full dimensions I ended at are FRONT: A/B/C/D = 139/47/462/370 (or basically 5mm taller than default).
And onto the rear install…
Rear install went in quicker and easier than front. Completed rear with whiteline rear upper control arm added while I was at it.
The "Height Adjustment System" setting I ended up for the rear was HAS=37mm (the default TEIN starting point is HAS=34mm). The full dimensions I settled on for the were REAR: A/B/C/D = 216/-/369/HAS 37 (or basically 3mm taller than default). I chose to change A (and thus C), to extend the shock length by the same amount of was setting the ride height over TEIN default. Again, if these numbers are confusing, just look at the pics in the install manual and it’ll all make sense.
After I completed the install, I set her back down on the ground, camber was out of OE spec - rear more than the front. I adjusted the whiteline RUCA to get back to where I wanted it at. Front was a different story, one side was within OE spec, while the other side was double OE spec at -0.6 deg. I was able to loosen the control arm carrier and shift it a bit to get me -0.5deg. Not much adjustment, but slightly better, and I’m ok with where it’s at. For me, front toe didnt really change, but rear was a tad more toe-in than before the install. The OE adjustments are super sensitive, so just a minor loosen of the toe arm cam bolt, and barely turning it brought it back into spec.
Final pose....
She sits at 29” ground-to-fender arch, both front and back. The rear started off at about 29.2”, but I’ve been on the setup for about 2 months, and it’s settled to 29” even – F&R. This is a 2023 MYP with MYLR gemini’s and tires. With stock uberturbines, rear would be about 0.3” taller. Overall, I’m very happy.
I went with the TEIN flex Z’s was because I wanted to drop the car just a little more from MYP stock height, and they didn't break the bank. While I had no complaints about the OE ride, the TEIN’s do ride MUCH better. This was immediately noticeable when I went from the first test ride. I started off with a middle setting at 8 clicks (counter-clockwise from full stiff). The best description I can give is that these coilovers takes the impulse from the hard hits on a larger bump, and spreads the impulse out over a longer time, so it feels like it’s not “bucking” you. Small bump compliance on 8-clicks is also more muted out.
I decided to bracket the settings, and test the limits of full soft vs full hard. So, I set the coilovers to full stiff for a week. The “buck” control was about same. However, all the little defects and undulations in the road definitely transmitted to the cabin. I expected to have my teeth rattled out, but was pleasantly surprised that it was completely drivable.
Next, I well full soft. Immediately I could feel more of the side-to-side movement. Big undulations definitively had more body movement, and all the little road imperfections disappeared compared to the OE suspension. I expected a mini-van “boat” like feel, but it was nothing of the kind. Again, very drivable. It seems that extreme ends (full soft to full hard) doesn't have as wide of a range as I would have thought, which makes small adjustments (only a few clicks) less noticeable. In the end I ended up back at setting 8, which suits my taste - still sporty with the great ride quality.
Hope my writeup helps a few on the fence out there!
When the box first arrived, I was upset to find the label showing a part number and description for a model 3 AWD (p/n VSGP4-C1AA3). Turns out after searching on TEIN’s website, the model 3 AWD and the model Y share the same part number.
The bad part is the instruction manual that’s in the box is only for the model 3 AWD, and not for the Model Y. So before installing, make sure to set the A/B/C/D dimensions to the model Y, as they don’t come to these settings out of the box!
Model Y dimensions from TEIN’s website for my model is listed as: “FRONT:A/B/C/D=134/42/457/365, REAR:A/B/C/D=213/-/366/HAS 34. If these dimensions are confusing, the manual shows pictures as to what each of these settings refers to for the adjustments.
Once settings are set, install is relatively straight forward. Because these coilovers come with their own top hats, the install is super easy – and you don’t have to mess around with coil spring compressors. I won’t detail the steps of install, but there are a couple of videos online on how to install with torque values.
Onto the install….
Front stock suspension pops right out. I didn’t bother with removing the front control arm carrier as shown in the video link I provided. You can just remove the stock shock top hat 13mm bolts then muscle the stock control arm up and out of the way to drop the OEM suspension out.
Front installed:
I played around with height adjustment, but I ended up with a “B” value of 47mm. The default TEIN starting point is 42mm, but it was too low for my taste. The full dimensions I ended at are FRONT: A/B/C/D = 139/47/462/370 (or basically 5mm taller than default).
And onto the rear install…
Rear install went in quicker and easier than front. Completed rear with whiteline rear upper control arm added while I was at it.
The "Height Adjustment System" setting I ended up for the rear was HAS=37mm (the default TEIN starting point is HAS=34mm). The full dimensions I settled on for the were REAR: A/B/C/D = 216/-/369/HAS 37 (or basically 3mm taller than default). I chose to change A (and thus C), to extend the shock length by the same amount of was setting the ride height over TEIN default. Again, if these numbers are confusing, just look at the pics in the install manual and it’ll all make sense.
After I completed the install, I set her back down on the ground, camber was out of OE spec - rear more than the front. I adjusted the whiteline RUCA to get back to where I wanted it at. Front was a different story, one side was within OE spec, while the other side was double OE spec at -0.6 deg. I was able to loosen the control arm carrier and shift it a bit to get me -0.5deg. Not much adjustment, but slightly better, and I’m ok with where it’s at. For me, front toe didnt really change, but rear was a tad more toe-in than before the install. The OE adjustments are super sensitive, so just a minor loosen of the toe arm cam bolt, and barely turning it brought it back into spec.
Final pose....
She sits at 29” ground-to-fender arch, both front and back. The rear started off at about 29.2”, but I’ve been on the setup for about 2 months, and it’s settled to 29” even – F&R. This is a 2023 MYP with MYLR gemini’s and tires. With stock uberturbines, rear would be about 0.3” taller. Overall, I’m very happy.
I went with the TEIN flex Z’s was because I wanted to drop the car just a little more from MYP stock height, and they didn't break the bank. While I had no complaints about the OE ride, the TEIN’s do ride MUCH better. This was immediately noticeable when I went from the first test ride. I started off with a middle setting at 8 clicks (counter-clockwise from full stiff). The best description I can give is that these coilovers takes the impulse from the hard hits on a larger bump, and spreads the impulse out over a longer time, so it feels like it’s not “bucking” you. Small bump compliance on 8-clicks is also more muted out.
I decided to bracket the settings, and test the limits of full soft vs full hard. So, I set the coilovers to full stiff for a week. The “buck” control was about same. However, all the little defects and undulations in the road definitely transmitted to the cabin. I expected to have my teeth rattled out, but was pleasantly surprised that it was completely drivable.
Next, I well full soft. Immediately I could feel more of the side-to-side movement. Big undulations definitively had more body movement, and all the little road imperfections disappeared compared to the OE suspension. I expected a mini-van “boat” like feel, but it was nothing of the kind. Again, very drivable. It seems that extreme ends (full soft to full hard) doesn't have as wide of a range as I would have thought, which makes small adjustments (only a few clicks) less noticeable. In the end I ended up back at setting 8, which suits my taste - still sporty with the great ride quality.
Hope my writeup helps a few on the fence out there!
