Aragosta 9K/8K Type E Suspension Kit w/ Pillowball Upper Mounts for E85 & E86 BMW Z4 M



Aragosta 9K/8K Type E Suspension Kit with Pillowball Upper Mounts

These items are typically not in stock and either made-to-order or special order from the manufacturer. After you order we will confirm the estimated lead time and other order details. If you have a specific deadline to receive this order please talk to us before placing your order to ensure that the manufacturer can meet your expectations.
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SKU: 60BM.05.B1.111 Category: Vehicle: Brand:
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Aragosta 9K/8K Type E Suspension Kit w/ Pillowball Upper Mounts for E85 & E86 BMW Z4 M

The Type-E series of dampers by Aragosta is a well-crafted combination of cutting-edge features from their high-performance Type-S and Type-SS coilovers. These dampers are specifically designed to excel in both spirited street driving and comfortable cruising. Key features include low-friction, WPC-treated inverted struts, height-adjustable Rana springs, specially formulated synthetic damper fluid, and Aragosta’s unique low friction seals. The Type-E also boasts 12-step rebound adjustment knobs (available on select models) and pillowball upper mounts with camber adjustable options for specific applications.

The Ultimate in Smooth Performance

  • Crafted to perfection, the Type-E series showcases an ultra-lightweight, high-pressure forged aluminum cylinder with next-generation film treatment and Kashima coating. Through impregnating molybdenum, the cylinder gains remarkable lubricity, significantly reducing friction and enhancing durability. As a result, these dampers deliver outstanding linearity, smoothness, and traction ability, surpassing conventional hard alumite-based alternatives.

High-Precision Machining: A Testament to Performance Focus

  • Aragosta’s dedication to precision engineering is evident in the Type-E dampers. They achieve remarkable surface roughness accuracy, reaching 0.2 microns and 2/10000 mm for both aluminum and steel cylinders. The advanced honing treatment further enhances surface accuracy and roundness within the cylinder, an exceptional level of craftsmanship seldom seen in damper manufacturing.

Superior Finishing Technology for Enhanced Longevity

  • The steel cylinder and outer case undergo a state-of-the-art cationic electrodeposition coating process, renowned for its superior rust prevention, impact resistance, and overall durability. This comprehensive electrodeposition ensures even coverage throughout every corner of the thread, ensuring prolonged lifespan and maximum performance.

Equipped with High-Performance Springs as Standard

  • All Type-E dampers come standard with Rana springs, embodying the ideal characteristics of a series-wound spring. These springs not only deliver top-tier quality and durability but also contribute to maximizing the overall damper performance.

Sharpened Internal Structure for Precise Control

  • Supporting Aragosta’s exceptional performance are their precision-engineered damper pistons and needles, capable of finely controlling damping characteristics even at extremely low speeds. The wide range of control, spanning from comfort to sports settings, dramatically enhances traction performance. Furthermore, the external damping force adjustment mechanism allows for precise and smooth characteristic changes across the 20-step adjustment range, catering to individual preferences and driving conditions.

High Hardness, High Efficiency WPC Processing

  • The Type-E’s inverted cartridge cylinder benefits from high hardness, high-efficiency WPC processing, a leading-edge technology for modifying metal surfaces. This process effectively reduces the wear coefficient and significantly improves oil film retention, a testament to Aragosta’s unwavering commitment to prioritizing performance, even in components that remain unseen.

Main Specifications

  • Premium rana springs for incredibly consistent rates and unmatched durability
  • High rigidity steel cylinders with Kashima coatings ensure long life and smooth operation
  • 20 step damper settings for an incredibly wide, usable range of adjustability
  • Full-length adjustment feature (some models excluded)
  • Pillow ball, rubber mount, and/or OE mounts used in many configurations
  • Available 2 and 4 cup axle lift systems for maximum versatility and daily driving convenience

Kit Contents

  • Coilovers (4x dampers + rana springs)
  • Adjustment wrenches


  • BMW Z4 M: E85 (2006-2008)
  • BMW Z4 M: E86 (2006-2008)

About Aragosta Suspension

Aragosta Suspension is a premium manufacturer specializing in the development and production of high-performance suspension systems. With a strong commitment to quality and innovation, the company has consistently produced advanced products that enhance vehicle dynamics and performance. Founded by top-level motorsport suspension engineer, Mr. Junzo Shibahara, Aragosta blends Japanese precision and technical prowess with European handling philosophy. The company prides itself on the unparalleled craftsmanship of its coilover systems, meticulously engineered to provide superior handling, traction, and driving comfort for various applications, from daily commuting to competitive racing. The name Aragosta, Italian for ‘lobster’, was inspired by the hard, protective exoskeleton of a lobster, reflecting the company’s dedication to offering robust protection and optimal performance to vehicles. Today, Aragosta Suspension continues its pursuit of automotive excellence, standing as a symbol of quality, precision, and performance in the suspension industry worldwide.

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