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Group N Hardened Bushings

STI hardened rubber bushings, either sold as a kit or individually, to improve handling, traction, and steering response. Rubber hardness is increased noticeably over stock parts but is within the limits for Group N use. Manufactured with the same quality and on the same production line as the OEM bushings.

NOTE: Select your kit depending on the front control arms used. High caster front control rear bushings and both application front control arm front bushings are OEM parts.

Usually ships the next business day.

Manufacturer: STI

Applications:

  • Subaru Impreza STI (USDM) MY04-07 (High Caster Arm)
  • Subaru Impreza STI (JDM) MY05-07 (High Caster Arm)
  • Subaru Impreza Spec C (JDM) (High Caster Arm)
  • Subaru Impreza STI (JDM) MY01-04
  • Subaru Impreza WRX MY01-07
  • Subaru Impreza MY02-07
Part No. Description Application Price Ea. Add to Cart
RSTBKN12 STI Suspension & Diff Bushing Kit High Caster Fr. Arm $558.00
RSTBK2 STI Suspension & Diff Bushing Kit $533.00
Individual Bushings (STI Group N)
Part No. Description Application Price Ea. Add to Cart
RST-2020R STI Group N Front Control Arm Rear Bush RH $48.63
RST-2020L STI Group N Front Control Arm Rear Bush LH $48.63
RSTR-2020R Subaru OEM Front Control Arm Rear Bush RH High Caster $61.43
RSTR-2020L Subaru OEM Front Control Arm Rear Bush LH High Caster $61.43
RSTR-HA81 Subaru OEM Front Control Arm Front Bush (2 Req'd.) $30.07
RST-2023 STI Group N Trailing Link Front Bush (2 Req'd.)(2) $21.74
RST-2024 STI Group N Trailing Link Rear Hub Bush (2 Req'd.) $21.74
RST-2025 STI Group N Lateral Link Outer Bush (4 Req'd.) $11.60
RST-2026F STI Group N Lateral Link Inner Front Bush (2 Req'd.) $13.05
RST-2026R STI Group N Lateral Link Inner Rear Bush (2 Req'd.) $17.39
RST-4154 STI Group N Rear Diff Front Member Bush (1 or 2 Req'd.)(3) $43.48
RST-4154X STI Group N Rear Diff Front Member Bush RH (3) $50.73
RST-4151 STI Group N Rear Diff Rear Mount Assembly $125.00

(2) Not Group N legal for GDB Impreza model (use OEM bushing if competing in Group N).
(3) After production date Jan. 2002 use RST-4154 for LH side and RST-4154X for RH side. Pre-Jan.2002 use RST-4154 for both sides. Full kits will be supplied with 1 each LH and RH part numbers unless requested otherwise.