B&G Suspension: legacy products and alternatives
B&G Suspension Systems made S2 Sport Lowering Springs, RS1 and RS2 coilover kits and 2.5-inch Race Springs for street and track cars. Its last catalog lists applications up to the 2016 model year, and the lines are no longer sold through this domain. If you need a replacement today, Eibach Pro-Kit or H&R Sport springs match the S2 drop range, and BC Racing BR or Tein Flex Z cover what RS2 owners used.
B-G Suspension Lab is an independent reference site. We are not affiliated with B&G Suspension Systems and do not sell or service B&G parts.
What B&G made
| Line | Type | What the catalog said |
|---|---|---|
| S2 Sport Lowering Springs | Lowering springs | 0.5-2.5 inch drop depending on vehicle, progressive rate, limited lifetime warranty |
| RS1 Coilovers | Coilover kit | Entry coilover line, listed for cars such as the Audi A3 and VW Golf V |
| RS2 Coilovers | Coilover kit | Height-adjustable kits for European and Japanese cars, including VW Mk4 and Mk5 |
| Race Springs | Coilover springs | 2.5 inch (63.5 mm) ID, 120-240 mm length, 4-16 kg/mm rates |
| Proflex Suspension | Distributed brand | Listed in the site menu next to the B&G lines |
S2 Sport Lowering Springs in detail
The S2 product page described the springs this way:
- Lowering from 0.5 to 2.5 inches, depending on vehicle and application
- Progressive spring rate to keep ride quality while improving handling
- Cold wound on CNC coilers from high-tensile chromium-silicon wire, then heat treated and shot peened
- Phosphate treatment and baked powder coat against corrosion
- ISO 9001 and TUV certification
- Limited lifetime warranty
The last S2 applications added to the catalog, with front / rear drop:
| Vehicle | Years | Drop F / R |
|---|---|---|
| BMW i3 | 2013-2016 | 1.0" / 1.0" |
| BMW i8 | 2014-2016 | 1.0" / 1.0" |
| BMW M3 | 2014-2016 | 1.3" / 0.8" |
| BMW M4 | 2014-2016 | 1.3" / 1.2" |
| Lexus CT200h | 2011-2015 | 1.2" / 1.0" |
| Lexus IS350 | 2013-2015 | 1.2" / 1.0" |
| Mini Cooper 2dr | 2014-2016 | 1.2" / 1.0" |
| Mini Cooper 4dr | 2014-2016 | 1.2" / 1.2" |
| Nissan Versa Note | 2012-2016 | 1.4" / 1.0" |
| Volkswagen Golf R | 2015-2016 | 1.0" / 1.0" |
RS1 and RS2 coilovers
RS2 kits were height adjustable. The last applications in the catalog listed these ranges, front / rear:
| Vehicle | Years | Adjustable drop F / R |
|---|---|---|
| Audi A4 / A5 | 2008-2014 | 1.2-3.0" / 1.2-3.0" |
| Scion FR-S | 2012-2014 | 1.2-3.5" / 1.2-3.5" |
| Subaru BRZ | 2012-2014 | 1.2-3.5" / 1.2-3.5" |
The catalog also kept RS2 installation manuals for older cars such as the VW Golf Mk4. Rebuild parts for these kits are no longer listed, so owners usually move to a current coilover with the same fitment.
Current alternatives
| If you had | Look at | Why |
|---|---|---|
| B&G S2 springs | Eibach Pro-Kit, H&R Sport | Same idea: progressive springs, moderate drop, work with stock or sport shocks |
| B&G RS1 / RS2 coilovers | BC Racing BR, Tein Flex Z | Height-adjustable street coilovers with wide fitment for the same cars |
| B&G Race Springs | Eibach ERS, Swift | 2.5 inch ID coilover springs in the same lengths and rates |
Compare the options in coilovers vs lowering springs before you choose.
FAQ
Is B&G Suspension still in business?
Can I still claim the B&G lifetime warranty?
What springs replace B&G S2?
Sources: b-gsuspension.com catalog (archived)