Will the Coil SumoSprings CSS-1125R Work w/a 2010 Subaru Forester?

Updated 08/31/2026 | Published 08/23/2026

Products Featured in This Question

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle

(469)

$186.99

Question:

Hi, is the CSS-1125R compatible with a Subaru Forester 2010?

asked by: Karl H

Expert Reply:

They sure are Karl! The Coil SumoSprings Custom Helper Springs item # CSS-1125R are designed to fit in the rear coil springs of the 2010 Subaru Forester.

The Coil SumoSprings item # CSS-1125R are designed to insert between the gaps of your Subaru's rear coils. They're going to limit the amount of travel your rear suspension has to address any sagging issues you encounter when towing or hauling something heavy in the rear.

What kind of trailer are you pulling or do you have something heavy like a cargo carrier on the back of your Forester? Feel free to answer this and throw in any other questions you have, where it says Add Comment.

expert reply by: Jerred H

CSS-1125R
(click to enlarge)

Bill F.

8/30/2026

I purchased a set for the rear suspension of my 2024 Hyundai Venue Limited. It made a world of difference in the ride as well as the stabilization when hauling a trailer. Well worth the money! I’m just upset. They don’t make them for my 2026 Hyundai Santa Cruz!

Jerred H.

8/30/2026

@BillF Thanks for taking the time to share that feedback Bill!

Jack E.

8/30/2026

Hi Karl, I installed Coil Sumasprings on the rear struts on my 2023 Crosstrek. With my 1,100.lb treardrop trailer hooked up, the hitch level came up about an inch. It rode much better than stock but not as good as installing stiffer springs and shocks.

Jerred H.

8/30/2026

@JackE Thanks for the feedback Jack!

Brian

8/31/2026

We put a set on our 2021 Toyota Rav 4. We tow a 1,200 lb. pop up camper. Made a world of difference. Reduced any sagging almost entirely. A local tire shop put them on in under 20 mins. Even with out the towing, if you load up your back end with garden soil or other heavy goods, you really notice the difference. Well worth it. Far better alternative than messing with air shocks or upgrading entire shock units.

Jerred H.

8/31/2026

@Brian That's great to hear Brian! That's a good point on the coil supports helping in other ways than towing support. Thanks for sharing that feedback. I really appreciate you taking the time to do so.