SPL Spherical Front Race Arm Conversion - E82 1-series, E9X 3-series

Improve geometry and convert from rubber to spherical bearings for improved handling and grip

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When you lower a street car for track use, you change the geometry and this change results in a loss of mechanical grip. You have a lower center of gravity and that is more important than the grip loss that occurs, but with this kit, you can have your cake and eat it too! Developed in 2006 when we first began running Touring Cars, this kit is well proven and will drop lap times noticeably.

The BimmerWorld Spherical Front Race Arm Conversion raises your roll center and restores your front suspension geometry that has been compromised from lowering for track or race use. These parts replace the factory rubber-jointed thrust arm, front control arm, and tie rod ends with precise machined components. Spherical rod ends arms allow your suspension to move freely without binding, and precisely even when loaded to maintain your desired toe and camber settings. These must be used with actual race coil overs with limited droop travel.

Spherical Front Race Arm Conversion features:
  • 100% machined and anodized, 6061-T6 lightweight aluminum arms
  • Extremely durable FK professional race-quality spherical rod ends
  • Lighter than stock
  • Bolt-on installation - no spindle modification necessary
  • Easy to adjust
Priced per set of six arms, all spacers, bearings, and hardware.

Does not require limited droop travel in your racing shocks.

Made in the USA

BMW Fitments:

1 Series

E82 / E88 (08-13) > 128i
E82 / E88 (08-13) > 135i
E82 / E88 (08-13) > 135is
E82 / E88 (08-13) > 1M (11-12)
3 Series
E90 / E91 / E92 / E93 (06-13) > 323i
E90 / E91 / E92 / E93 (06-13) > 325i
E90 / E91 / E92 / E93 (06-13) > 328i
E90 / E91 / E92 / E93 (06-13) > 330i
E90 / E91 / E92 / E93 (06-13) > 335d
E90 / E91 / E92 / E93 (06-13) > 335i
E90 / E91 / E92 / E93 (06-13) > 335is
E90 / E91 / E92 / E93 (06-13) > M3
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  • I am extremely pleased with this order. The price was competitive and your expedited delivery charge was surprisingly low. I needed the part fast and you exceeded my expectations. I especially appreciate your gentleman who over the phone ensured me that the part was indeed in stock and would be shipped immediately.
    - Allan Read More
  • I’ve never dealt with a true “race” shop like BW and I really have enjoyed the experience. I always feel like I’m getting the best advice, and suggestions for true race car set up. Your technical expertise on even the minute details of building race cars is really impressive, and some I value greatly...
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