The Rogue Engineering E46/Z4 Performance FCAB is a unique and incredibly effective front control arm bushing design, combining CNC'd 6061-T6 aluminum and high-performance polyurethane. These are an innovative and effective compromise between street and track - street focused but with capability for serious track use. Rogue wanted to push the limits with something that was not only effective, but simple in design - high-performance without any of the negative aspects of track-only parts. Needless to say, RE was extremely successful in reaching their goals...
Factory bushings work fine when new, but still leave a bit to be desired in the steering feedback department. Plus, the soft rubber degrades quickly leaving you with some of the common side effects of worn factory FCABs, such as steering wheel shutter when braking, steering wheel shimmy, odd and irregular tire wear, light steering/poor feedback.
Rogue FCAB are available with two urethane options:Street Performance
for slightly more sport and precision in daily driving environments. Urethane material for less deflection, more precise handling, and better steering response but while retaining some comfort for street use. No track or very little autocross. If you attempt to use these in competitive driving you will quickly be outclassed by others with true race equipment.Track/Race-only
is for dedicated track cars that are never intended to be driven on the street (you might throw a plate on it and run to the store). Basically, if your car has racing harnesses instead of seat belts. These will be the stiffest urethane or Delrin for near-zero deflection and extremely precise alignment settings. NVH and comfort is not a factor in the engineering of these bushings. Our preference is for Delrin over Black urethane for track use.
- Serviceable/rebuildable (easy replacement of bushing insert)
- Urethane insert prevents unwanted control arm deflection while allowing NVH isolation
- Eliminates steering shimmy and wander, especially with the addition of big brake upgrades
- Centered bushing - unchanged steering geometry
- More direct feeling with front end of vehicle - increased steering feedback
- Choice of street or track bushing hardness
- Easy to install (professional installation recommended)
The RE Performance FCABs reuse the factory eyeball arms, or "lollipops," as the aluminum sleeve of the FCAB is pressed into place. Hydraulic press is required for removal of stock bushing and installation of RE FCABs. Professional installation is recommended. Aluminum housing fits 66mm control arm bracket (some very early cars had smaller 60mm brackets).
BMW Fitments: 3 Series
E46 (99-05) > 320i
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330iZ Series
E85 / E86 Z4 (03-08) > Z4 2.5i M54
E85 / E86 Z4 (03-08) > Z4 3.0i M54
E85 / E86 Z4 (03-08) > Z4 3.0i N52
E85 / E86 Z4 (03-08) > Z4 3.0si N52