Sonic Tuning - S1 S3 Adjustable Coilovers Group Buy
Works with E90, E91, E92.
1 Series S1 and S3 system now available for ordering.
We are doing special prices for members of e90post!!
S1 - Adjustable height, damping force & rebound; Includes front top pillow mount. $999
S3 - Adjustable height, damping force & rebound; Includes front top pillow mount with camber adjustment. (-2.5 - 2.5 degrees) $1199
Designed and developed for consumers seeking maximum comfort for everyday driving but still provide aggressive handling on the street and on the track.
The S1 suspension system is the best for daily driving. You can lower your car by the lower mount without affecting the travel of the suspension like every other ST suspension systems. You can easily adjust the damping force with your finger to allow you to easily tune the suspension when you want to confront different road types and conditions. You have everything you need to enjoy driving your car in the street and you will not have to confuse yourself with too many adjustments.
• Full length adjustment system on lower mount
• Separate ride high and pre-load adjustments
• Aluminum alloy construction: lower mount, top mount, spring seat and locks
• Multi-positional manual damping force adjustment *
• Forged aluminum top mount
• Compression and rebound: Each application has a different number of manual damping adjustments
• Adjust damper rate by touch of a knob.
• 12 level adjustable damper - adjustable dampers allow fine-tune the suspension stiffness to best suit the driving condition.
• Scm440 hardened piston rod: special high strength grade material with extra hardened process effectively improves the chances again deform, fracture and leakage.
• Special formulated oil – stable and durable high quality oil seal can minimize any suspension failures or oil leaking to increase durability.
• Racing suspension fluid – high performance suspensions fluid can effectively stabilize the damper force and ensure suspensions condition under severe driving.
• Inner polished seamless steel tube – quality high strength tubes ensure the strength of the struts (cylinders) the micro finished inner surface ensures a precise and smooth action, which can reduce the changes of fluid leakage and prolongs struts endurance.
• Mono tube design; come with quick response and comfort suspension fluid is separated from high-pressure gas in order to reduce damper failure.
• Advanced formulated rubber parts: effectively increase the endurance and help eliminate abnormal noises.
• Forged aluminum alloy top mount: increase the strength and effectively reduce the weight, and provides sensitive driving feedback.
• Sae9254 spring: high strength material formed spring effectively minimizes deformation.
• 6061 t6 aluminum alloy plate: lighter than normal steel parts.
• Improve the performance of the shock absorber and increase controlling
All of our coils come with one year warranty, lifetime against defects in material and workmanship.
-S1 Top Mount
-S3 Top Mount
In the past few weeks, we've received alot of emails and concern regarding the quality of our coilover sets.
We just want everyone to know that, at this time we are selling them with a very low margin to capture market and make a reputable name for the product.
All of customers that are running the coils for the past months have been very happy with them.
The manufacturer also produces some of the top name coils in the market, and the exact same set is selling for $1399.
Background and Material usage:
Our manufacturer has 10+ years of experience in racing and R&D. We adhere to the highest quality standards by only using top quality input materials – ours pistons are made out of the same SCM440 that Bistein uses (very few use the same). In addition to quality assurance, we also deliver innovation. Our adjustable cylinder features an independent hydraulic-oil chamber and air chamber to ensure that the shock absorber will perform smoothly and consistently on the road.
Our seamless steel tubes, containing chrome molybdenum alloy, will operate without flexing under high performance driving and are more durable than current market standards.