SPL Parts 2012+ BMW 3 Series/4 Series F3X Front Tension Rods

Starting with the gun-drilled, billet aluminum alloy 2024 hex rods, these SPL Parts tension rods are built to reduce unsprung weight without sacrificing strength. This is a key detail for performance alignment, allowing for a wide range of front caster adjustment. Getting your caster dialed in precisely helps optimize turn-in response and can even compensate for slight differences between the left and right sides of your vehicle. For BMW F3X chassis owners, this means a more connected and responsive steering feel, especially when pushing the car on the street or track.

The stock rubber bushings are replaced with FK Spherical Bearings, which eliminate the vague, mushy feeling you get from the factory setup. These bearings are designed for smooth articulation and low friction, thanks to a Teflon liner that's chemically bonded to the race. This liner can handle a wide temperature range, from -65º to 325º F, making them reliable for both daily driving and demanding track sessions. SPL's exclusive 360-degree rotating clamp design makes it straightforward to lock in your desired alignment settings once they're set. Plus, the use of blue anodized titanium hardware further shaves weight and adds a touch of durability.

These tension rods are sold as a pair and are proudly made in the USA. They are designed to fit a wide range of BMW 3 Series and 4 Series models from 2012 onwards, including popular examples like the 328i, 340i, 428i, and 440i. The included stainless steel spacers also allow you to tune the anti-dive geometry, giving you even more control over your suspension's behavior.