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Description
Function7 Rear Lower Control Arm - 92-95 Civic / 94-01 IntegraFunction7 is back! F7 rear LCAs features our signature triangular truss design to carry on the legacy that stands behind the Function7 name. This design not only significantly reduces overall weight but has minimal impact on strength and rigidity. F7 LCAs are some of the lightest on the market weighing in at just 1. 75 pounds per arm (including all bushings!). Function7 LCA utilizes only USA sourced 6061 T6 grade aluminum. This material was carefully
Function7 is back! F7 rear LCAs features our signature triangular truss design to carry on the legacy that stands behind the Function7 name. This design not only significantly reduces overall weight but has minimal impact on strength and rigidity. F7 LCAs are some of the lightest on the market weighing in at just 1.75 pounds per arm (including all bushings!).
Function7 LCA utilizes only USA sourced 6061-T6 grade aluminum. This material was carefully chosen for its malleable properties and is the preferred material used on many high-end racing wheels for its performance characteristics during an impact.
The polyurethane bushings are made with the highest quality domestic materials which allows minimal deflection and increased durability over rubber bushings. The billet aluminum bushing pins have also been re-engineered; grooves are now cut in for better lubricant retention which exponentially increases the service life of the bushings.
Function7 LCA utilizes only USA sourced 6061-T6 grade aluminum. This material was carefully chosen for its malleable properties and is the preferred material used on many high-end racing wheels for its performance characteristics during an impact.
In addition, the precisely located end link mounting holes not only allows for multiple sway bar and end link combinations but also aids in keeping the sway bar arm in the ideal geometry.
The polyurethane bushings are made with the highest quality domestic materials which allows minimal deflection and increased durability over rubber bushings. The billet aluminum bushing pins have also been re-engineered; grooves are now cut in for better lubricant retention which exponentially increases the service life of the bushings.
Lastly, The Function7 logo has been updated and is now proudly CNC machined on all our arms.
Features:
- Made in the USA
- Weighs only 1.75 lbs (Per Arm with all bushings!)
- Machined from 6061 billet aluminum for a precise fit and finish
- Mirror effect Machined Finish
- Hollowed Triangle cross pattern for unparalleled strength and weight reduction
- Function7 CNC machined Logo
What's Included:
- 12 x Premium polyurethane bushings
- 12 x Billet aluminum bushing pins
- 1 x Poly grease
- F7 Logo decal
Please note endlink is sold separately
Compatible with: 88-91 Civic/CRX (non Type-R shocks) /92-95 Civic / 93-97 Del Sol / 90-01 Integra (non Type-R)
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
4.0 ★★★★★
Based on 2249 reviews
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Product Reviews
★★★★★ 5
Very heavy and thick
Style: 30 sqft
I purchased mini brands of sound ending and this is by far the heaviest sound deadening I've ever ordered. I'm not installed yet but I have a good feeling that is going to work exceptionally in blocking sound. If weight is a concern for you I would recommend a lighter product however if sound quality and a quiet ride is your priority this is the one for you.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Siless Hybrid 3-in-1 - Far Exceeded my Expectations!!!
Model: SLH20025
I recently installed the Siless Hybrid 3-in-1 sound deadening mat in my vehicle, and I’m genuinely impressed. For just $80 for 25 square feet, this product delivers performance that rivals materials costing twice as much — and with far less hassle. If you're on the fence......Just buy it! You will not be disappointed.
Easy to Install: Unlike traditional sound deadening products that are stiff, sharp, and temperature-sensitive, this mat is soft, flexible, and easy to work with. I cut it cleanly with regular scissors and pressed it into tight spaces using just my fingers, so if in you don't have a roller or install tool, a good pair of scissors and your hands can get the job done. With other brands like Dynamat, the aluminum layer often leaves micro cuts on your hands and tears up your fingertips, but Siless does not due the acoustic layer being on top and above the aluminum layer that holds the butyl layer. So, it's very easy on your hands.
Even in cooler temperatures (around 50°F), I had no trouble applying it but it goes on better heated. If warm outside, I would leave the entire box out in the sun for at least 30 minutes when it's warm or heats it's very pliable and easy to mold. Make sure its where you want it because once applied it's not ever falling off. and it became even more pliable and easy to mold. No heat gun, no mess — just straightforward application.
I installed 40–50 square feet throughout the interior, covering everything except the headliner and the flooring forward of the rear seat. The difference in cabin noise is astonishing. I can turn my radio up concert loud with gut-punching bass, and from outside the car, it sounds like a factory sound system at mid volume. I was blown away by how well it contains sound — both inside out and outside in.
My exhaust is pretty aggressive and now is barely audible from inside the cabin. While driving, it almost sounds like a stock factory setup. The Siless matting actually changed the driving experience and feels refined.
If you're skeptical about sound deadening gimmicks, I get it, but this is the first product I've used and when I needed more, I went Stright to the 3 in 1 Hybrid matting and purchased it again. I love researching before buying and that's very uncommon for me to do.
Note: Proper installation is key, and it does take time and patience. But if installed correctly and in the right places, it works better previously used from paint-on sound deadening to Dynamat.
Update Nov, 2025
After using it this in 4 separate vehicles now. I feel the Siless’s 3 in 1 Hybrid has nailed it for best budget deadener that is better than dynamat extreme in performance and installation
Protip: buy a roll of 2-3” aluminum tape and tape the seams. After trimming the edges tend to very sticky between the panels. I ran a strip of aluminum tape over the seems to create a better seal and true moisture
I used it on four vehicles now and have I have not been paid to review and purchased every order myself.
3 in 1 Hybrid deadener by Siless is the best all around easy to apply sound deadner period!
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Top quality
Model: SLH20025
This Siless Hybrid 3-in-1 sound deadening mat is easy to work with and feels high-quality. The butyl material is thick and pliable, making it simple to cut and fit into doors, floors, or panels.
After installation, road noise and vibrations are noticeably reduced, and it also seems to improve the overall cabin feel. No bad smell.
At 25 sq ft per roll, it’s a good value for anyone looking to dampen noise and improve car acoustics. Overall, a solid, effective option for automotive soundproofing. Used on a Fiesta ST.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Made a big improvement in cabin noise—highly recommend
Model: SLH20025
Siless Hybrid made a huge difference in reducing noise in the floor of my truck cabin. In some areas, there was basically just bare sheet metal between the inside and outside, so adding this really helped the truck feel more solid and noticeably quieter on the road.
I used Kilmat on the doors, and honestly I wish I had used Siless Hybrid there too, but it was too late by the time I realized the difference. This material is very sticky, easy to cut, and simple to apply, which made the install pretty smooth.
Just a heads-up: the tacky side gets messy and will bond to clothing really easily, so be careful during installation. Overall, I’d definitely buy it again—great product with real results.
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Reviewed in the United States on December 2, 2025
★★★★★ 5
Very good product at a fair price
Model: SLH20025
Very good sound deadener and heat shield, it is a bit sticky to work with, but easy to shape and cut
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Reviewed in the United States on April 19, 2026