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Description
Fox 987-24-030 2.5 Performance Series IFP HTO Shock AbsorberThe Fox 987 24 030 2. 5 Performance Series IFP HTO Shock Absorber from Guaranteed Auto Parts is a bolt on shock loaded with position sensitive technology, larger pistons, and vehicle specific valving to help improve on and off road performance. Featuring a type II anodized aluminum body that efficiently dissipates heat and prevents corrosion. The 2. 5 inch shock body is made with an internal floating piston (IFP) to separate the shock oil from the
The Fox 987-24-030 2.5 Performance Series IFP HTO Shock Absorber from Guaranteed Auto Parts is a bolt-on shock loaded with position-sensitive technology, larger pistons, and vehicle-specific valving to help improve on and off-road performance. Featuring a type II anodized aluminum body that efficiently dissipates heat and prevents corrosion. The 2.5-inch shock body is made with an internal floating piston (IFP) to separate the shock oil from the high-pressure nitrogen, optimizing damping.
The Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement. HTO helps to reduce harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow down the shock shaft speed. HTO is particularly beneficial after installing heavier, aggressive tires and applications lifted higher than OEM specification. Bolt-on a pair of the Fox 2.5 Performance Series HTO shocks to increase damping capacity and ride in comfort with position-sensitive rebound control.
Specifications:
Travel: 4.890
Extended: 17.950
Top Mount: Eyelet
Compressed: 13.070
Bottom Mount: Eyelet
The Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement. HTO helps to reduce harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow down the shock shaft speed. HTO is particularly beneficial after installing heavier, aggressive tires and applications lifted higher than OEM specification. Bolt-on a pair of the Fox 2.5 Performance Series HTO shocks to increase damping capacity and ride in comfort with position-sensitive rebound control.
Features:
- Corrosion Resistant
- 5/8" Hard Chrome Shaft
- Application Specific Tune
- Internal Floating Piston (IFP)
- Hydraulic Top Out (HTO) Piston
- Fully Rebuildable And Re-Tunable
- Type II Clear-Anodized Body Plating
- High-Flow Velocity-Sensitive Damping
- 2.5" Impact Extruded 6061-T6 Aluminum Shock Body
Specifications:
Travel: 4.890
Extended: 17.950
Top Mount: Eyelet
Compressed: 13.070
Bottom Mount: Eyelet
WARRANTY INFO:
1 Year Limited
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 2
Not compatible with Honda CRV 2023
Style: 1.5L, Style: 1.5L
Pretty disappointed that the description did not match what my car actually needed. THIS IS NOT COMPATIBLE WITH A HONDA 2023 CRV Engine Air filter… Just glad the cabin air filter worked. Having to buy another one… The image attached is what I needed to replace.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza.
I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph.
With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg.
Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
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