SPL Parts SPL-TRE-E9X Bumpsteer Adj Tie Rod Ends for BMW E9X/E8X/F2X/F3X/F8X

Regular price: $326.95
Regular price: ~~$379.00~~
Sale price: $326.95

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In Stock: 38

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Product Specification:

SKU:SPPSPL TRE E9X

MPN: SPL TRE E9X

UPC: SPL TRE E9X

Weight: 3.5 lb

Inventory: 38

Type: Tie Rods

Vehicle Fitment

2008-2013 BMW 1 Series (E81, E82, E82M, E87, E88)
2006-2013 BMW 3 Series (E90, E91, E92, E93, M3)
2010-2019 BMW 1 Series (F20, F21)
2010-2019 BMW 2 Series (F22, F23)
2011-2020 BMW 3 Series (F30, F31, F34)
2011-2020 BMW 4 Series (F32, F36)
2014-2021 BMW M3 / M4 (F80, F82, F83)
2014-2021 BMW M2 (F87)

Fitment Notes

Fits front suspension only; not applicable to rear tie rod or toe link positions.
Compatible across RWD and xDrive AWD variants within all listed platforms.
E82M denotes E82 M Coupe variant and is explicitly supported.

Features

Bumpsteer-adjustable design allows the tie rod end pivot point to be precisely relocated, correcting bump steer caused by modified caster or lowered ride height geometry.
Custom CNC machined 6061-T6 billet aluminum curved turnbuckles maximize articulation range and allow full suspension droop travel without binding.
Low-friction Teflon-lined FK Heim joints/rod ends deliver smooth, precise steering feel and eliminate the compliance of OEM rubber bushings.
ASTM A574 socket head cap bolts provide maximum articulation with a minimum tensile strength of 170,000 psi for high-load track use.
Includes both 1/4" and 1/8" thick stainless steel bumpsteer spacers with tapered ends for fine-tuned pivot adjustment and increased misalignment capability.
Blue anodized titanium socket head cap screws reduce unsprung weight while delivering superior clamping force compared to standard steel hardware.
Prevents inner tie rod breakage or bending on heavily lowered cars by eliminating excessive tie rod end bind throughout the suspension travel range.
Reduces lap times by correcting steering geometry after suspension modifications, coilover installation, or aggressive alignment settings.
Made in the USA with precision CNC machined components and aerospace-grade materials throughout.

Specifications

Position: Front, Left and Right
Turnbuckle Material: 6061-T6 Billet Aluminum (CNC machined, curved profile)
Rod End Type: FK Heim Joint, Teflon (PTFE) lined
Hardware: ASTM A574 Socket Head Cap Bolts - 170,000 psi minimum tensile strength
Fastener Finish: Blue Anodized Titanium
Bumpsteer Spacer Sizes: 1/8" and 1/4" thick stainless steel (tapered ends)
Adjustment Type: Bumpsteer pivot relocation via stacked spacers
Sold as: Pair (Left + Right)
Country of Manufacture: USA

Included Components

2x CNC machined 6061-T6 billet aluminum curved turnbuckles (left and right)
2x Teflon-lined FK Heim joint / rod end assemblies
2x 1/4" thick stainless steel bumpsteer spacers
2x 1/8" thick stainless steel bumpsteer spacers
2x ASTM A574 socket head cap bolts
2x Blue anodized titanium socket head cap screws

Product Description

The SPL Parts SPL-TRE-E9X Bumpsteer Adjustable Tie Rod Ends are a precision-engineered front suspension upgrade designed for BMW E9X, E8X, F2X, F3X, and F8X platform vehicles that have been lowered, aligned aggressively, or modified for track use. When a BMW is lowered or the caster geometry is altered, the OEM tie rod end pivot no longer traces the correct arc through the suspension travel range - resulting in bump steer, a condition where the front wheels toe in or out unpredictably as the suspension compresses or extends. The SPL TRE-E9X corrects this by allowing the pivot point to be precisely repositioned using the included stainless steel spacers, restoring proper tie rod geometry and eliminating unwanted steering inputs caused by bump and droop.

Beyond geometry correction, these tie rod ends address a serious mechanical failure mode common on lowered track cars: inner tie rod bending or breakage caused by the OEM outer tie rod end binding at extreme suspension travel. By relocating the pivot point to match the new suspension geometry, the SPL TRE-E9X eliminates the bind and protects the entire steering rack assembly. The core components - CNC machined 6061-T6 aluminum curved turnbuckles, ASTM A574 high-tensile bolts, and low-friction Teflon-lined FK Heim joints - are selected for maximum strength, minimal deflection, and long-term durability under race conditions. Blue anodized titanium hardware further reduces unsprung weight at the front corner.

This kit is sold as a pair and covers a wide range of BMW platforms spanning model years 2006 through 2021, including the E9X 3 Series, E8X 1 Series, F2X 1 and 2 Series, F3X 3 and 4 Series, and F8X M2/M3/M4. It is equally suited for daily-driven lowered street cars experiencing vague or twitchy steering as it is for dedicated time attack or drift builds requiring precise front-end geometry control. Installation follows SPL's standard bumpsteer spacer procedure, with the included instruction set available from the manufacturer. Replacement rod ends are also available separately from SPL Parts if servicing is needed down the road.