The BMW E81/E82/E87/E88 Mantis Kit is engineered for optimal handling performance while drifting. It features fully fabricated knuckles and arms constructed from high-strength alloy using a tab-and-slot design, ensuring robust welds and connections among all components. Additionally, the kit is designed to be on-car adjustable, allowing all adjustments for caster, camber, and toe to be made without removing any parts. Note: Does not work with M series knuckles. Key Features: Angle: 70 degrees depending on your wheel setup and length of control arms. Tie-rods: Outer tie-rods included, these fasten to the stock inner tie-rods. Ackermann: Adjustable Ackermann options from Positive - zero - negative. Roll Center: Optimized handling by adding 40mm of roll center correction. Bump steer: Perfected bump steer for drifting. Caster: Modifications made to the displaced caster amount giving a good self-steer feel for the driver and maximizing the performance for drifting. Camber: Optimized camber ranging from -3 to -6. Track Width: 50-75mm wider per side creating a stable and high clearance front end. Suspension Travel: Long travel range, full lock to full lock at any point throughout suspension travel for increased grip. Joints: Chromoly heim joints, and spherical bearings with self-lubricating nylon race, easily replaceable. Durable, Reliable & Lightweight: Made from High strength alloy steel and Aluminum. Note: For custom colors, please list it within the order notes. Note: Please allow 2-3weeks of fabrication before the item is sent. Installation Manual Why Choose FDF? Driver-inspired designs: Our products feature innovative, driver-inspired designs tailored for performance and style. High-quality materials: We use only high-strength alloys to ensure the durability and superior quality of our products. Made in North America: Our products are proudly made in-house in North America, ensuring exceptional craftsmanship and reliability.