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Experience greater driving stability and extend the life of your vehicle's coil springs with this suspension system. Coil enhancers absorb and dissipate shock from rough road conditions whether the vehicle is loaded or unloaded.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone, Steven here with etrailer. Today we're looking at our Timbren suspension enhancement system, specifically for coil spring suspensions on the rear axle. Now these fit a 2013 through 2026 Subaru Crosstrek. That being said, sometimes these videos can become outdated over the years, so I always recommend you check the etrailer.com's fit guide where it says "my vehicle information." Enter things like year, make, and model, and other questions that ask you to be sure you're getting the right parts the first time. Now, what's neat about these is they're gonna mount to your existing attachment points that give you rear axle support, enhancing your coil suspension's ability to support loads. Now, this uses what's called progressive load cushioning, and that just means it's gonna adjust the sit, adjust the stiffness based on the load weight, giving you optimal comfort.
And as you can see, you get the four clips there, a couple bushings here, and of course the two main spring enhancement systems themselves. Now, the cool thing about these here, once you install them, you don't have to worry about adjusting anything. They're ready to go for the life of your vehicle as long as you're using them. Now, these are rated at 1500 pounds rear spring capacity, so that means never go over what the limit of your vehicle is, number one. But number two, these are only gonna support 1500 pounds of support, so you're not adding that weight capacity to your vehicle.
You're just supporting 1500 pounds of that total weight, giving you a better, more cushioned, ride, and better suspension and handling overall. If you have questions about this product or anything else with your suspension or towing, reach out to us. We're here to assist you in any way we can. I'm Steven, thanks for watching. Stay safe while you're towing.
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Ratings & Reviews

Robin H.
9/22/2026
Thanks for taking the time to share such a detailed review and all of the pictures! The unloaded ride is a concern we hear fairly often with SES upgrades, so your experience with the 1" gap and rough-road testing will be really helpful to others considering these for their F-250. We appreciate the kind words about Naomi and our team as well. Looking forward to your update once you get some miles on them with the Rockwood!

Christopher H.
8/14/2026
Love hearing this! Really appreciate the detailed feedback and photos. That extra stability when you're loaded up can make a huge difference. And installing them at 11 at night—that's commitment. Hope they treat you just as well on those mountain roads. Safe travels and we'll definitely make sure Dee Dee gets the shoutout.


Lazer S.
8/19/2026
Glad to hear they are working well for you, Ryan! Now that they are on, where you headed?

Jay S.
8/14/2026
Now that its been a year Im very impressed with them. Theres no ride detriment without the 5th wheel attached and they do a great job of mitigating squat

Christopher H.
9/3/2026
Happy to hear the Timbrens are making that big of a difference Tony. Thanks for including the photo and we appreciate the kind words! Have you taken any longer trips with the Timbrens installed?


Jesse M.
9/10/2026
Awesome! Glad to hear the Timbrens made such a big difference in the ride quality. Thanks for sharing! Happy travels!

Brooke M.
5/7/2025
Wow, thank you for sticking with us, Don! That is awesome. I think you made an excellent choice here. Timbrens are tough and the heavy duty are SUPER tough. Glad to hear these were a good fit. Love the photos! Is that your own property?

Don
5/21/2026
The TIMBRENs work as stated during when I am pulling anything heavy. However, when the truck is not pulling anything, anyone riding in the rear seat gets a very hard jarring jolt when driving over any roadway repairs, bumps, expansion joints on bridges. I wished that I would have went with the Super Springs, or the Road Active Suspension. I may replace the TIMBRENS later.


Kate F.
5/6/2026
Glad to hear the Timbren systems worked out so well for your RAM Van Mitchell! It’s great that you noticed the smoother, more progressive response compared to the factory bump stops, especially under load. Thanks for sharing your experience with both the front and rear installs, that’s really helpful for others considering the upgrade. What kind of loads are you usually hauling with your van?

Lazer S.
6/16/2026
They definitely look like they are helping, Orlando! How are they when you aren't towing? We hear a lot of people say they can be pretty harsh when unloaded.

Kate F.
7/13/2026
Bud, thank you so much for taking the time to leave a review! I'm glad to hear the suspension upgrade helped reduce the sagging and porpoising while towing. I also really appreciate you including the installation pictures and sharing your tip about removing the rear wheels. I'm sure that will help the next person tackling the install. Thanks again for choosing etrailer!

Heather A.
4/24/2026
Hi there, thanks for reaching out, that’s actually a common issue with this type of trim. The one you tried is a standard flat insert, but some RVs (like your NOBO) use a slightly domed trim to help it sit over the screw heads in the track. If the screws stick up even a little, a flat trim won’t fully snap in place, which sounds like what you’re running into. The best way to find the right replacement is to remove a small piece of your original trim, lay it flat, and measure the full width from edge to edge. Most are either 3/4" or 1", but the shape matters too, not just the width. If yours has that domed profile, you’ll want something similar or a softer vinyl that can flex over the screws. If you’re able to send a quick photo of your track or old trim, I’d be happy to help you find a better match.

Mike L.
4/23/2026
Niiiice, I see what you did there!! That looks like a sweet setup!


Mike L.
4/2/2026
Glad to hear they worked well for you Jerrod. Hope you had a good trip!

Lazer S.
7/20/2026
Glad they are working well for you, Kevin! Well, while you are towing, that is. We have heard that these can be pretty rough when unloaded, but work great when you are loaded. A quick release function on these would make taking them off when not towing a lot easier. I may pitch that to Timbren to see if they can work something out. I will tell them to call it something like the Kevin Device if they agree! ^___^ Sounds like quite the trip! What has been your favorite stop so far?

Mike L.
2/26/2026
Thank you Darrell, we're glad to hear your Timbrens are still on the job!

Kate F.
4/23/2026
Thanks for sharing your experience Thomas. It is great to hear the Timbrens made a noticeable difference in ride quality and reduced body roll on your E350 Class C. We also appreciate the heads-up on the install. That kind of real-world feedback about brake line clearance is very helpful for others working on a similar setup. Would be nice if they had a stronger option, if you need the 5K, might need to go to airbags, but who wants to deal with having to air up if you don't need to. Where are you off to on the next adventure?

Mike L.
7/7/2026
Nice setup David, thanks for the photo!

Kate F.
5/6/2026
Glad we had the right suspension upgrade to help with the squat Dennis! How is the ride when you are unloaded?

Kate F.
8/31/2026
With the Timbrens, you will want to have a 1/2" to 1-1/2" gap when the vehicle is unloaded. They are only designed to engage when the suspension is under load and you need the additional support. If you want to reduce that gap so the Timbrens engage sooner, you can add the 1/2" Spacer # TA25722-90P00 or the 1" Spacer # A25723-90AH00.

Heather A.
2/21/2025
Timbrens are the best for sag because they are made of dense rubber. 6500 lbs sounds like one heck of a travel trailer, what is it? Any fun plans this summer?


Jerome
3/2/2026
Awesome product. Would recommend.
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Kate F.
8/31/2026
I am happy to see we had some suspension support for you Benjamin! What kind of trailer are you towing?