SPL BMW E9X E8X F8X Titanium Series Front Tension Rods Trailing Arms Caster Arms
Unlock sharper turn-in, rock-solid stability and repeatable alignment on road and track with the SPL Parts Titanium Series front tension rods for BMW E9X, E8X and F8X. These adjustable caster arms replace the soft OEM rubber-bushed arms with FK spherical-bearing precision, giving your BMW instant steering response, improved brake feel and the ability to dial in caster/castor and anti-dive geometry for your exact setup.
Engineered for maximum performance, the SPL tension rods use gun-drilled billet 2024 aluminium links to cut unsprung weight without compromising strength, a 360 degree rotating clamp for fast, precise on-car adjustment and blue anodised titanium hardware for superior strength and further weight savings. Stainless steel spacers let you fine-tune anti-dive, while hardened FK JMX Teflon-lined rod ends deliver quiet operation, low friction and zero bushing deflection under load.
We run these SPL caster arms on our own builds and customer cars and the results speak for themselves: faster steering response, more confidence on turn-in and consistent alignment that stands up to hard street miles and track abuse. Customers love the quality, the adjustability and the Made in USA build.
Why choose these SPL front caster arms
- Wide caster/castor adjustment range for precise alignment and balanced left-right setup
- Transforms steering feel with FK spherical bearings replacing mushy OEM rubber
- Tune anti-dive geometry using supplied stainless steel spacers for better braking stability
- Reduces unsprung mass with gun-drilled billet 2024 aluminium links
- Blue anodised titanium hardware for strength and weight savings
- Exclusive rotating 6061-T6 aluminium clamp design for quick, accurate adjustments
- Hardened FK JMX high-misalignment, three-piece, PTFE-lined rod ends for durability and smooth articulation
- ASTM A574 socket head cap bolts for maximum articulation and 170,000 psi minimum tensile strength
- Built for street and track with PTFE liner operating range from -65º to 325º F
- Sold as a pair. Made in the USA
Fitment compatibility
BMW applications:
- E82 E88 1 Series, M and non-M (2008+)
- E90 E91 E92 E93 3 Series, M and non-M (2006–2013)
- F80 M3 (2014+)
- F82 F83 M4 (2014+)
- F87 M2 (2016+)
Note: Not compatible with xDrive AWD models.
Part number
SPL TR E9X
Keywords customers use to find this product
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Fitting and alignment
Professional fitting and alignment recommended. We offer installation at Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.