Z33 R-tune / SILENT-CIRCUIT differential carrier bushing

Developed to emulate a NISMO R-tune S15 differential carrier bushing, with a stiffness target tailored for the Z33's single rear mount. Features ADOPT specification high-hysteresis polyurethane formulation to adequately dampen and suppress axle-hop without introducing the deafening NVH of the typical solution, a solid metallic bushing.

Subjective NVH increase: 0-3%; filters all noise above low rumble.
Stiffness suitable for motorsports use, including with high lock, clutch type LSD.

The only double-bonded polyurethane bushing on the market, which addresses tilting failure modes/kinematics that all other products ignore via shape factor 3-5x of others.

Single-sided polyurethane products are cheap, but they can move and distort in the subframe bore temporarily under high loads and hot temperatures; they also exhibit creep and become permanently distorted under repeated high cycle loads.

This bushing is properly supported in a steel sleeve with high shape factor of bonded area, spreading load over a much larger bond area, preventing deformation.

Designed using methodology of SAE technical papers from J.M. Horton, et al.

Fitment:

Nissan

• 2003-2008 Nissan 350Z (Z33)
• 2009-2020 Nissan 370Z (Z34)
• 2023+ Nissan Z (RZ34)

Infiniti

• 2003-2007 Infiniti G35 Coupe (V35)
• 2003-2008 Infiniti G35 Sedan (V35)
• 2003-2008 Infiniti FX45 / FX35 (S50)
• 2008-2013 Infiniti G37 Coupe (V36)
• 2009-2013 Infiniti G37 Sedan (V36)
• 2008-2017 Infiniti EX / QX50 (J50)
• 2014-2015 Infiniti Q60 Coupe (V37)

Made in the US🤠 near Chicago, IL.