U.S. RubberShox DuraTPE Series Front-Rear Car Coil Spring Buffer Cushion/Automotive Suspension Shock Absorber Retainer Performance Booster Kit Universal Type A-F Vehicle Auto Parts (CSB Pro, B+)

I was considering these for a while for my '09 Smart 451, and after reading another review about how much they helped I decided to get them. I bought the Red size D for the front springs, and they fit well. Only took about fifteen minutes to install following the instructions. I didn't even need to remove the front wheels. The ride height in the front appears less than an inch higher after install, but feels like a lot more when you sit in the car for the first time. The steering is definitely stiffer, but when after a fifteen minute test drive it was already less noticable. Anyone who has driven a Smart knows how rough the ride is. Even minor bumps in the road feel like you're bottoming out the suspension, and good luck surviving a larger bump or pothole with your spine and all your teeth intact. The ride is immediately smoother after installing this product. I was laughing about how stupid better the car felt over even moderate bumps. I can relax a little while I drive through town not having to constantly scan the pavement for any deviation in elevation to avoid. These are not going to save you from breaking teeth on a massive pothole, but the everyday bumps and divots are significantly smoother.

I own a 2000 Honda ACCORD V6. Four years ago I rebuilt the worn out front suspension and bought 4 new quick struts - 2 front 2 rear - all from here on Amazon. The 2 rear struts are still working perfectly, unfortunately, the two front ones started sagging.I live in a city where the roads are absolutely terrible. It's no wonder that the front struts are already sagging. In the beginning, the ride was very solid - no wondering in the steering or wishy washy handling like a boat on choppy water. But recently I could tell that the ride was starting to get bouncy and the steering less precise.On first inspection of the 2 front struts, there seemed to be nothing wrong with them; no leaks, no broken springs. I guess the springs just started to sag. With these replacement quick struts, I heard it can be a crap shoot on getting the proper ride height and spring rate. But instead of replacing them with another pair that would eventually sag in the same manner in a few years, I decided to try these RUBBER SHOX instead.Just like the other reviews have stated, you have to get the size right. Once you get the size right, the installation is kind of difficult, but not impossible. The first one will give you trouble, but once you learn how to install it, then the other one becomes a breeze. You have to use WD-40 or similar to make the surfaces slippery, and you have to cut down some of the inside lip to get it to fit properly. Also, once you make one complete 360 degree circle, you have to cut off the excess length of rubber. It took me maybe just over an hour to install both. The first one took forever, the second one took 10 minutes.RIDE: These things work! I cannot believe the difference in ride quality. I tested the front suspension out on a very tall speed bump located in a parking lot near where I live. I drove my car right over it and the front end DID NOT bottom out. I few weeks ago I did this and the front end banged hard against the speed bump. That's when I knew it was time to do something about my sagging front end suspension.You don't have to replace your sagging struts. Especially if they are not very old. The springs can start sag but the rest of the strut is probably still OK. Just buy these RUBBER SHOX instead and save ou some hassle.HIGHLY RECOMMENDED!

OK product. was not to bad to install with proper lubricant,was hoping for at least an inch lift thats why I bought the more sturdy ones .I did get about 1/2 lift and tires don't rub as much as before , I can tell I have less side sway also ,little bit stiffer ride but still ok

Coil spring boosters are not new. Superior Automotive has sold them for years through OReilly Auto and other auto stores, Speedwaymotors which caters to circle track racing has also sold them.However, these RubberShox have the variety of sizes to actually most likely fit your car, unlike the limited previously mentioned offerings.Some advice regarding fit:- The diameter of the booster is not as important as the spacing between the coils (corresponds to the H2 on the booster) and the actual coil rod diameter (G2 on the booster).- You MUST pick a booster that has a smaller H2 dimension than the spacing between your extended coil spring. It CANNOT be close or bigger. I originally got the A size for my car thinking that even though the H2 at 1.85" was close to my spring spacing of 1.75" I could force it. Wrong. Brutally wrong. There must be free space to feed the booster onto the coil. Even with the B size I got, which has an H2 of 1.22" getting the booster on still took some serious pushing and finger strength.- Most springs have smaller spacing between the coils towards their ends. Hence, I installed these boosters near the middle of my springs and then rotated them towards the end of the springs. This wedged them into place. Even though zipties were included with my boosters there were no holes in my boosters for them, and I wouldn't nor saw any need to drill holes in my boosters to use the zipties.- Rubbershox says you can use WD40 to mount these. That's controversial as people have said WD40 deteriorates rubber, I used soapy water.The results are fantastic. Concerning raising the rear ride height, that is negligible. Immediately after install there was an increase of 1/2", but it didn't take long for that to settle out right back to the original height. But under dynamic load and motion it is obvious that the rate of my rear springs has noticeably increased. Cornering is spectacularly better. Even at low speeds in parking lots the steering is noticeably tighter. At higher speeds there simply is less body roll, and hence less steering input is needed.I'm content enough that I don't feel the need to get boosters for the front. I have the Pro for the rear (black) and was going to get the standard (red) for the front, but I'm fine with how the thing handles for now. I do recommend for most vehicles that the rear be stiffened before the front. Stiffening only the front will promote understeer. Especially on longer vehicles such as vans and minivans stiffening the rear in comparison to the front will aim towards oversteer and sharpen steering input. There is a lot of torsional twist that occurs in longer bodies and stiffening the rear helps counter that. This is definitely a best bang for buck mod for a car like my van.There is no detrimental harshness. Going over speedbumps is clunkier and louder, but it's a compromise I'm perfectly happy with. My only concern at this point is durability, which remains to be seen.

For price not worth after 2 months make a lot of noise and check come off an place