5th Gen Mods, Off-Road, Reviews, Trail Tested

Fox 2.5 Remote Reservoir Review

Updated 8/14/19 / Read Time: 4 mins

Fox 2.5 Remote Reservoir with Dual Speed Compression Adjusters Review For the 5th Gen 4Runner

Fox 2.5 Remote Reservoir with Dual Speed Compression Adjusters Trail-Tested Review For the 5th Gen 4Runner

The Coilover Shock that does it all…

When demanding performance meets the capability of becoming comfortable in any situation, FOX 2.5s with Remote Reservoirs and Dual Speed Compression (DSC) are the way to go!


These progressive coil-over shocks come with the ability to adjust in height from 0 to 2 inches of lift (3 inches with extended travel). With the twist of the adjustment collar, 4 full rotations = 1 inch of lift.


They are well built to survive the rigors of the outdoors with its double clear-coated, zinc plated, alloy bodies and 7/8th hard chromed and heat-treated alloy steel shaft along with all-black anodized 6061-T6 billet aluminum components.

The external remote reservoirs are not only there to supply and separate the fresh, cooler oil from the nitrogen but also houses the DSC knobs.

You are no longer bound by factory set adjustments but now have the capability to control both high speed and low speed dampening with the simple twist of either-or knobs.

Also, the only shocks available that allow for two-way adjustment.

No mess or tools required!

These shocks are no child’s play, they perform and give you all the capabilities but at the cost of a fairly high price tag of $1700 for the fronts and $1300 for the rears.

I also had a tiny rub of the reservoir hose with my upper control arms, but since an alignment, I have not had an issue.

Dual Speed Compression

Fox 2.5 Dual Speed Compression

Dual Speed Compression is the highlight of these amazing coil-over shocks with two dials that give you seamless access to the performance and comfort of your ride.

Separated by what FOX calls “High Speed” (Blue knob) and “Low Speed” (Gold knob) compression, these dials control the dampening of the suspension.

The high-speed compression knob gives you 12 clicks to adjust the ride and can add 30-60% more load, while the low-speed knob gives you 10 clicks and can add an astounding 120-150% more load.

How does all this work you ask?

Well, the adjusters contain three paths the oil flow through. Low speed uses a needle that changes the diameter of the bleed path, controlling the flow of oil. The high speed uses a deflective disk that controls the flow of oil in its path.

The final hole is the rebound check valve, its job is just to allow the oil to return to the shock when the shaft is extended.

Now, what does this all really mean to you?

It means you can control the plushy or stiff feel you get when driving on road at low and high speed (IE side to side handling, potholes, speed bumps, etc) and also dual speed compression adjustment for fast desert runs or even slow rock crawling (IE washboards, dunes, g-outs, etc).

These shocks give the end-user a personal touch to their ride and ultimately provide the flexibility and versatility to meet each and every person’s desire.


Fox 2.5 Remote Reservoir with Dual Speed Compression Adjusters Review For the 5th Gen 4Runner: Performance

This is where everything all comes together and really gives you a big smile on your face!

When properly adjusted for the situation and your desire, these progressive shocks will hands- down outperform its competition.

Having taken these shocks on washed-out roads filled with holes deeper than a foot and sudden drops while also going over 70mph; I can tell you, it’s scary but also scary smooth. The cabin is smooth with soft movement and landings, all four wheels are planted, and your face…well it contains a huge smile while your heart is also racing.

Once the fun is done, you can easily walk over and (for me) lower each compression setting for a nice and comfortable ride back home.

No longer will you dread each bump driving with family members and yourself and slowly over time your back will thank you!

Bilstein 5100, FOX 2.0, ICON 2.5… or FOX 2.5?

Fox 2.5 Remote Reservoir with Dual Speed Compression Adjusters Review For the 5th Gen 4Runner: Conclusion & Personal Note

The FOX 2.5 Remote Reservoir with DSC is absolutely amazing in its capabilities and versatility.

It truly is a one of a kind shock that bridges the known gap and sacrifice most say when entering the world of off-road, ride quality.

Having had Bilstein 5100, FOX 2.0, and ICON 2.5s, all of which are great shocks priced accordingly, the FOX 2.5 with dual speed compression really puts the icing on the cake and sets the standard in its category of the off-road industry.

I no longer have to settle with the sacrifice of ride quality on the road while having very capable off-road performance, and I no longer have to say I will need new shocks since these are rebuildable.

I am more than pleased with these shocks and will continue to add to the system as time goes to see just how far these can take me.

Questions or Comments? Leave them below!

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September 21, 2020 12:58 pm

Can you update the link for the rear shocks? Or provide the full name so I can locate them. Thanks!

Harrison Scott
Harrison Scott
April 24, 2020 11:38 pm

Hey Nicholas.

Great read! I have a 2019 ORP and am looking to upgrade my suspension. It is still my daily driver so the ability to change the stiffness was a big reason why I liked the Fox 2.5. I would like to do some more off roading in the future, especially if I have these installed.

Do you think I should consider anything else?

Also, I have heard some things about Fox’s customer service that kinda of scare me, especially buying $1700 shocks. Do you have any experience with this?

January 30, 2020 9:48 pm

Hey! Great review! Any known issues with KDSS? Sounds like modifying brackets and/or possible Tires rubbing hose is an issue? Or
At least was in the past? Any info would be great!

September 17, 2019 7:53 am

Hands down the BEST coilovers for 4runners.

September 8, 2019 9:42 pm

Do you see a big drop from the daily driving of the Bilstein’s? I use my 4runner as my daily driver as well. Everything I have seen is that you sacrifice the smooth daily driving with the 2.5 compared to the Bilstein’s. What do you think?

David Shoore
David Shoore
September 5, 2019 9:04 am

I’ve been having issues with my Icon Stage 6 shocks and am looking to replace them with these Fox shocks. What settings are you running front and rear?

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