SPL Pro Suspension Steering Tie Rod End

SPL Pro Suspension Steering Tie Rod Ends: Precision Where It Counts

When your suspension geometry is dialed in everywhere else but your tie rod ends are still stock, you're leaving handling on the table. SPL Pro Suspension has built its reputation on solving exactly that problem, and their line of steering tie rod ends represents one of the most engineering-forward upgrades available for the performance and motorsport community.

The Bumpsteer Problem — and SPL's Solution

On lowered or modified vehicles, stock outer tie rod ends introduce a well-documented problem: as the suspension compresses and rebounds, the mismatched pivot geometry causes the front wheels to toe in and out dynamically — commonly known as bumpsteer. On lowered cars, this results in less dynamic toe change (aka bumpsteer) as the suspension compresses during cornering and over rough roads, resulting in more predictable handling, less tire shoulder wear, and better stability over rough roads and track curbing.

SPL's tie rod ends attack this directly. SPL Parts Titanium Series Front Outer Tie Rod Ends allow for bumpsteer adjustment by enabling the tie rod end pivot to be relocated with the use of spacers. This means you can precisely reposition the pivot point to match your actual ride height and suspension geometry, rather than relying on OEM specs that were designed for a stock, unmodified vehicle.

PRO Series and Titanium Series — Two Tiers of Performance

SPL offers tie rod ends in both their PRO and Titanium product lines, covering a wide range of popular platforms including Nissan 240SX (S13/S14), 350Z/370Z (Z33/Z34), Infiniti G35/G37/Q50, Chevrolet Corvette C5/C6, and BMW G8X/G2X/G42 models. SPL Front Tie Rod Ends allow the tie rod end pivot to be relocated, which will correct bump steer resulting from modified caster or lower arm geometry, thus reducing lap times.

The PRO Series is particularly well-regarded for its material science. Shanks are made from 9310 alloy steel — an alloy noted for its incredible impact and fatigue strength most commonly used in performance transmission gears — utilized to take the abuse and shock loads from lock-to-lock steering in drifting, with hardened 9310 shanks certified for 190,000 psi tensile strength. That's an extraordinary standard for a steering component that sees the full brunt of aggressive cornering and high-angle drift inputs.

Beyond strength, SPL's outer tie rod ends offer more articulation angle than stock tie rod ends, and include adjustable spacers to move the outer tie rod end lower to eliminate binding — a common failure point on heavily lowered cars where stock units can bind and snap under stress.

American-Made, Track-Proven Engineering

SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house in the USA, with all materials sourced from American suppliers to ensure consistently high quality. Products are constructed using chromoly seamless straight tubing, DOM mandrel bent tubing, and 6061 and 2024 aluminum, with all TIG welding and CNC machining done locally by professional welders and machine shops to meet exact quality standards and tolerance specifications.

SPL also backs their products with a manufacturer's warranty covering defects in materials and workmanship, reflecting their confidence in the build quality of every component they ship. SPL has continually improved the strength of their tie rod ends since first releasing the product, and with each improvement, customers have been given free updates — a commitment to offering the highest quality and safest suspension products.

Who Should Consider SPL Tie Rod Ends?

SPL Parts delivers the adjustability and durability needed to dial in your alignment — whether you're competing in professional racing or aiming to improve your high-performance street car. If you've invested in coilovers, aftermarket control arms, or increased steering angle knuckles, upgrading to SPL tie rod ends is a logical next step to ensure your entire front-end geometry is working as a cohesive, tuned system — not fighting against itself through bumpsteer and binding.