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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Another Sonic S1 Coilover Review



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      01-16-2011, 07:18 PM   #1
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Another Sonic S1 Coilover Review

I've had the coilovers on the car for about 2-3 weeks and I've put 300-400 miles on them. Im happy! The ride is close to stock, however handling is a huge improvment. The car is more planted threw turns. I gave a ride to a friend who also has a 335i ( stock ) and he was amazed at how much better the car felt. The product is top notch, the customer service is ouststanding. I had tons of questions about set-up and i always received a reply, even got a phone call. Theses coilovers have exceeded my expectations on build quality and performance.
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      01-16-2011, 07:39 PM   #2
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Glad to hear I am considering these coilovers.

I would like to hear from someone that has had these on their car for 20k or 30k mi. I expect them to perform well during the first 500 mi or 8 k mi even, but with a 1 yr warranty I am concerned about the long term durability. Needless to say it does not instill a lot of confidence when a manufacturer will only stand behind their product for 12 mo. Last thing I want to do is have to replace them after 5 yrs.
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      01-17-2011, 09:37 AM   #3
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Sounds great! How are the small cracks in the roads (more noticeable). Any worsening of noise or vibrations?

Thanks,

Sachin
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      01-17-2011, 10:48 AM   #4
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[quote=Hellrot Sachin;8704234]Sounds great! How are the small cracks in the roads (more noticeable). Any worsening of noise or vibrations?

Thanks,

Sachin[/QUOTE

Maybe a little more noticable. Everything is quite. I have yet to play with the dampening, I think i have them all set to 1
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      01-17-2011, 11:17 AM   #5
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Is 1 the stiffest or softest?
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      01-17-2011, 02:33 PM   #6
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Jason,

Thanks for the review!
Hope you got everything worked out.

You might want to try different damping setting, 1 might be too soft.

Sachin,

1 being lowest, and 12 being highest.
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      01-18-2011, 04:11 PM   #7
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This is great news once again. I cant wait to save money to get a set.
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      01-18-2011, 05:16 PM   #8
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Quote:
Originally Posted by cssnms View Post
It does not instill a lot of confidence when a manufacturer will only stand behind their product for 12 mo. Last thing I want to do is have to replace them after 5 yrs.
I'm considering these coilovers but this is my exact worry! I almost would rather get a set of H&R springs with Koni FSD's just for some piece of mind.
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      01-18-2011, 05:37 PM   #9
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Quote:
Originally Posted by joshuo View Post
I'm considering these coilovers but this is my exact worry! I almost would rather get a set of H&R springs with Koni FSD's just for some piece of mind.
Thanks for your consideration.
Personally I had the coils on my personal car for 2 years now, and the quality of the ride is still good. (not bottom out on bumps or potholes, and quality of the ride is smooth).

The manufacturer have been in business for 11 years is a sign for doing something right!

Let me know if you have any other questions, feel free to drop a PM.
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      02-26-2013, 10:55 PM   #10
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Quote:
Originally Posted by Transport3r View Post
I'm considering these coilovers but this is my exact worry! I almost would rather get a set of H&R springs with Koni FSD's just for some piece of mind.
Based on what I read. Don't coilovers eventually leak? Like within 1-2 years?
Does Koni FSD have a lifetime warranty?
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      04-14-2013, 11:13 AM   #11
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Bump
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      04-15-2013, 01:15 PM   #12
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Quote:
Originally Posted by Zero_09 View Post
Based on what I read. Don't coilovers eventually leak? Like within 1-2 years?
Does Koni FSD have a lifetime warranty?
So far, this has been my experience since I've been using coil-overs since 2009. After the 2nd year you can feel the difference and you begin to be tempted to swap out the shocks. But it is also dependent on the driver and where/how that person drives.

As an fyi, I do not own Sonic coils.
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      04-16-2013, 03:31 PM   #13
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Quote:
Originally Posted by cssnms View Post
Glad to hear I am considering these coilovers.

I would like to hear from someone that has had these on their car for 20k or 30k mi. I expect them to perform well during the first 500 mi or 8 k mi even, but with a 1 yr warranty I am concerned about the long term durability. Needless to say it does not instill a lot of confidence when a manufacturer will only stand behind their product for 12 mo. Last thing I want to do is have to replace them after 5 yrs.
5 years? thats a long time and a lot of miles (depending on how much you drive) to not expect to replace a "performance" part.

but i guess it also depends on how low you drop the car.
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      04-17-2013, 03:53 PM   #14
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Great to hear that it worked out well for you! Can you post some pics of how your car looks?
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      04-17-2013, 03:54 PM   #15
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I've heard some interesting things about these coilovers. My friend has his set to the lowest setting in the rear but my stock sport suspension sits the same as his if not lower. His install is fine, too. Its just weird
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      05-21-2013, 10:20 AM   #16
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Quote:
Originally Posted by BoogeyMan'sBMW View Post
I've heard some interesting things about these coilovers. My friend has his set to the lowest setting in the rear but my stock sport suspension sits the same as his if not lower. His install is fine, too. Its just weird
Any pics?
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      06-20-2013, 05:06 PM   #17
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Quote:
Originally Posted by jose_sonictuning
Quote:
Originally Posted by joshuo View Post
I'm considering these coilovers but this is my exact worry! I almost would rather get a set of H&R springs with Koni FSD's just for some piece of mind.
Thanks for your consideration.
Personally I had the coils on my personal car for 2 years now, and the quality of the ride is still good. (not bottom out on bumps or potholes, and quality of the ride is smooth).

The manufacturer have been in business for 11 years is a sign for doing something right!

Let me know if you have any other questions, feel free to drop a PM.
Have you had to do any type of service to them? If so what?
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