Replace your flimsy, imprecise OEM sway bar end links with these performance engineered Dynamic+ Billet Adjustable Front Sway Bar End Links for E8X & E9X BMW M cars from 034Motorsport!034Motorsport's Dynamic+ Billet Adjustable Front Sway Bar End Links allow for the uncompromised transfer of suspension movement to the sway bar, and are adjustable in length, allowing you to eliminate preload on the sway bar. 034Motorsport Dynamic+ Billet Adjustable Front Sway Bar End Links use high-misalignment ball joints, ensuring that the end links do not bind as the suspension articulates.This 034Motorsport Dynamic+ Adjustable Rear Sway Bar End Link Kit has the features, performance, and maintenance-free operation to make it a winner on the street and the track! WHAT IS SWAY BAR PRELOAD? When a sway bar is preloaded, it means that it is already twisted when the car is at rest, and it’s trying to roll the car to one side because of this. This will lead to asymmetric behavior and the car will favor tuning one way versus the other.Preload is detectable when the car is at ride height on a flat surface, and removal of an end link is difficult because the sway bar is already twisted and applying force on the bolt, or installing the end link is difficult because the bar needs to be twisted to insert the bolt through the hole in the sway bar. With equal-length non-adjustable sway bar end links, removing preload is not possible.By utilizing our 034Motorsport adjustable end links, the lengths of each end link can be adjusted so that the end link can be easily installed at ride height without needing to twist the bar to get it to fit. Zero preload provides symmetrical handling in right and left turns. Features: CNC Machined 6061-T6 Aluminum Bodies (Anodized Black for Durability) Zinc Plated Steel Ball Joints OEM+ Quality with Adjustability Quieter with Less Maintenance than Spherical Motorsport End Links +/- 0.75" of Adjustability (1.5" Total Adjustment Range) Adjust Sway Bar Preload - Essential When Corner Balancing Lowered Vehicles Increased Strength for Stiffer Sway Bars, Heavier Loads, and Motorsport Use Improved Sway Bar Reaction Time & Accuracy Compatible with All Stock and Aftermarket Sway Bars. Sold In Pairs What's Included: 2x Billet Aluminum Adjuster Rods 2x Dynamic+ Ball Joints - RH Thread 2x Dynamic+ Ball Joints - LH Thread 2x Jamb Nuts - RH Thread 2x Jamb Nuts - LH Thread 4x M10 Lock Nuts 4x M10 Washers Anti-Seize OE PART INTERCHANGE: 31 35 2 283 441 31 35 2 283 442