1. Introduktion
This manual provides detailed instructions for the installation, adjustment, and maintenance of your maXpeedingrods Coilover Suspension Kit, Model KS75OC. This kit is specifically designed for Subaru Impreza WRX STI GDF models from 2005 to 2007 (RIM P.C.D.=114.3). Please read this manual thoroughly before attempting any installation or adjustment. Proper installation is crucial for vehicle safety and performance.
It is highly recommended that installation be performed by a qualified professional mechanic. Incorrect installation can lead to serious injury or damage to your vehicle.
2. Sikkerhedsoplysninger
- Brug altid passende personlige værnemidler, herunder sikkerhedsbriller og handsker, når du arbejder på dit køretøj.
- Sørg for, at køretøjet er sikkert understøttet på donkrafte på en plan overflade, før du påbegynder arbejdet. Stol aldrig udelukkende på en donkraft.
- Frakobl køretøjets batteri, hvis det er relevant, før du arbejder på elektriske komponenter.
- Brug de korrekte værktøjer til hvert trin i installationsprocessen.
- Do not modify any components of the coilover kit. Modifications can compromise safety and performance.
- After installation, have a professional alignment performed to ensure proper vehicle handling and tire wear.
- Inspicer regelmæssigt alle affjedringskomponenter for slid, skader eller løse fastgørelseselementer.
3. Pakkens indhold
Please verify that all components listed below are present and undamaged before proceeding with installation. If any parts are missing or damaged, contact maXpeedingrods customer support immediately.
- Complete Coilover Assemblies (2 Front, 2 Rear)
- Height Adjustment Wrenches (Pair)
- C Spanners (2x)
- Installation Instructions (Printed Manual)

4. Opsætning og installation
The installation of coilovers requires specialized tools and knowledge. It is strongly recommended to have this procedure performed by a certified automotive technician. The following steps are a general guide and may vary depending on your specific vehicle model and existing suspension setup.
4.1 Kontrol før installation
- Confirm vehicle compatibility (Subaru Impreza WRX STI GDF 2005-2007, RIM P.C.D.=114.3).
- Inspect all coilover components for any shipping damage.
- Gather all necessary tools, including jacks, jack stands, wrenches, sockets, and torque wrenches.
4.2 Komponent overview





4.3 Generelle installationstrin (professionel installation anbefales)
- Klargør køretøjet: Lift the vehicle safely and support it with jack stands. Remove the wheels.
- Fjern OEM-ophæng: Carefully disconnect and remove the original shock absorbers and springs. Note the orientation of all components.
- Montering af nye gevindskjold: Mount the new maXpeedingrods coilovers. Ensure all bolts are tightened to the manufacturer's specified torque settings. Pay attention to the orientation of the top hats and lower mounts.
- Indledende højdejustering: Before fully tightening, set the coilovers to an approximate desired ride height. Fine-tuning will be done after the vehicle is on the ground.
- Saml igen: Monter hjulene igen, og sænk køretøjet.
- Afsluttende kontrol: Bounce the vehicle to settle the suspension. Re-check all fasteners for tightness.
- Professionel tilpasning: A professional wheel alignment is mandatory after coilover installation to correct camber, caster, and toe settings for optimal handling and tire longevity.
5. Justering
Your maXpeedingrods coilovers offer adjustable ride height and spring preload. Adjustments should be made with the vehicle safely supported or with the suspension unloaded, depending on the specific adjustment being made.
5.1 Justering af kørehøjde
The ride height can be adjusted by rotating the lower mount on the threaded shock body. This allows for a lowering range of 1-3 inches from the original ride height. Always adjust both sides of an axle equally to maintain balance.

- Loosen the lower mount (A) and the locking ring (B) using the provided C spanners.
- Rotate the lower mount (A) to increase or decrease the threaded distance (D) to achieve the desired ride height.
- Once the desired height is set, tighten the lower mount (A) and locking ring (B) securely against each other to prevent movement.
5.2 Spring Preload Adjustment
Spring preload can be adjusted by rotating the locking ring (C) shown in Image 5.1. This adjustment affects the initial compression of the spring and should be set according to your driving preferences and vehicle weight. Incorrect preload can affect ride quality and handling. Consult a professional for optimal preload settings.
6. Vedligeholdelse
Regular maintenance ensures the longevity and optimal performance of your maXpeedingrods coilovers.
- Regelmæssig inspektion: Undersøg regelmæssigt gevindskørterne for tegn på skader, lækager, korrosion eller løse komponenter. Kontroller støvkapperne for revner.
- Rensning: Keep the coilovers clean, especially the threaded sections and piston rods. Dirt and debris can cause premature wear. Use mild soap and water, avoiding harsh chemicals.
- Momentkontroller: After initial installation and periodically thereafter, re-check the torque of all mounting bolts and locking rings.
- Støvstøvler: The full-length dust boots protect the rod and piston from dust and debris, contributing to a longer lifespan. Ensure they are intact.
7. Fejlfinding
This section addresses common issues you might encounter with your coilover suspension. For complex problems, always consult a professional mechanic.
| Spørgsmål | Mulig årsag | Løsning |
|---|---|---|
| Usædvanlige lyde (klunken, knirken) | Loose mounting bolts, worn bushings, incorrect preload, debris. | Check all fasteners for proper torque. Inspect bushings for wear. Verify preload settings. Clean components. |
| Ujævn kørehøjde | Incorrect height adjustment on one side, uneven spring preload. | Measure ride height from a consistent point on all four corners. Adjust height evenly. |
| Poor Handling / Instability | Incorrect alignment, improper height settings, damaged components. | Ensure professional wheel alignment has been performed. Re-check height settings. Inspect for damaged parts. |
| Leaking Shock Absorber | Seal failure, damage to shock body. | Contact maXpeedingrods customer support for assistance. Replacement may be necessary. |
8. Specifikationer
Key technical specifications for the maXpeedingrods Coilover Suspension Kit (Model KS75OC):
- Anvendelse: Subaru Impreza WRX STI GDF 2005-2007 (RIM P.C.D.=114.3)
- Modelnummer: KS75OC
- Forreste fjederhastighed: 9 kg/mm (504 lbs/in)
- Bageste fjederhastighed: 7 kg/mm (392 lbs/in)
- Adjustable Ride Height: 1-3 cm sænkning (fra original kørehøjde)
- Front Rod Diameter: 22 mm
- Material (Top Mount): 6061-T6 aluminium
- Material (Springs): High Rigidity 55CrSi Steel
- Shock Body Coating: Anodized with Anti-Corrosion Coating
- Lower Mount Coating: Pulverlakeret

9. Support
For technical assistance, warranty inquiries, or to report missing/damaged parts, please contact maXpeedingrods customer support. Refer to your purchase documentation for specific contact information or visit the official maXpeedingrods webwebsted.
maXpeedingrods is committed to providing quality products and support to ensure your satisfaction.





