MaXpeedingrods Coilover Suspension Kit

1. Introduction

This manual provides detailed instructions for the installation, adjustment, and maintenance of your MaXpeedingrods Coilover Suspension Kit. This kit is designed to enhance the performance and aesthetics of your Subaru Impreza WRX (GC/GF Series) manufactured between 1992 and 2000. Please read all instructions carefully before proceeding with installation or adjustments. Professional installation is highly recommended.

2. Specifications

Key Features:

• Lowered height adjustment from 1" - 3" for a lower center of gravity and aggressive stance.
• 24-level rebound damping adjustment for precise tuning of ride quality.
• Twin-Tube structure ensures sufficient stroke within the shock absorber for comfort and performance.
• Complete kit includes 4 shock absorbers and 4 springs for straightforward installation.
• Separate height adjustment mechanism prevents interference with damper stroke.
• Height can be adjusted while coilovers are installed on the vehicle.
• High Tensile performance springs, stress-tested over 600,000 times with less than 0.04% distortion, feature special surface treatment for durability.
• Height adjustment tools are included.
• Front camber plate top mounts eliminate the need for a separate camber kit.
• Pillow ball top mounts improve steering feel and response.
• Components like mounts, collars, and spring perches are crafted from 6061-T6 Billet Aluminum for lightweight, durable, and rust-resistant properties.

3. Setup and Installation

Installing coilovers is a challenging task and should not be attempted by individuals without mechanical expertise or the proper tools. It is recommended to recruit an assistant with at least some level of mechanical knowledge. Detailed installation procedures may vary by vehicle; therefore, this guide should be viewed as a general installation instruction. Professional installation is highly recommended.

1. Prepare the Vehicle: Use a car jack or an automotive lift to raise the car to a comfortable working height. Ensure the car is completely level and securely supported. Always refer to your vehicle's owner's manual for proper jacking procedures. Never work under an unsupported vehicle.
2. Access Suspension: Remove the driver's side wheel and tire, then place them aside to expose the wheel well and suspension system.
3. Relieve Suspension Slack: Starting with the driver's side wheel, place a floor jack under the lower control arm and raise the jack-pad until any slack in the suspension is relieved.
4. Remove OEM Components: Remove any brake line or other hardware attached to the OEM assembly. Then, remove the OEM shock absorber by following the manufacturer's manual and preparing the brand-new piston cap top nut.
5. Adjust Coilover Height (Pre-installation): After removing the original suspension equipment, you can set the initial coilover height by adjusting the coilover length.
6. Mount the Coilover: Lift the coilover through the underside of the vehicle and into position in the chassis. Secure the OEM top nuts back on the strut tower mount. Thread the nuts until at least two threads are visible above the nut. Do not over-tighten. This allows ample movement for the next step. Attach the brake line to the new hub/knuckle assembly. Exercise caution to avoid damaging axles.
7. Install Lower Mounting Hardware: Replace the lower mounting hardware into the lower bracket and hand-tighten them. Mount all loose brake lines and/or ABS lines that were previously affixed to the OEM shock body. You may re-use your OEM hardware.
8. Torque Fasteners: Torque the top nuts and lower hardware to OEM torque specifications.
9. Repeat for Remaining Wheels: Repeat steps 1-8 for the passenger side and both rear wheels.

4. Operating and Adjustment

Height Adjustment:

Your MaXpeedingrods coilovers allow for height adjustment from 1 to 3 inches. This adjustment can be performed while the coilovers are installed on the vehicle. Use the provided height adjustment tools (spanner wrenches) to rotate the lower spring perch and adjust the ride height. Ensure the vehicle is safely supported and the wheels are off the ground before making adjustments. Adjust all four corners evenly to maintain proper vehicle balance.

Damping Adjustment:

The coilovers feature 24 levels of rebound damping adjustment. This allows you to fine-tune the ride stiffness and handling characteristics to your preference. The damping adjustment knob is typically located at the top of the coilover shaft. Turning the knob clockwise generally increases damping (firmer ride), while turning it counter-clockwise decreases damping (softer ride). Experiment with different settings in a safe environment to find the optimal balance for your driving style and road conditions.

Camber Adjustment (Front Only):

The front coilovers are equipped with adjustable camber plates. This allows for fine-tuning of the front wheel camber angle, which can affect tire wear and handling. Camber adjustments should be performed by a qualified technician using appropriate alignment equipment after installation and height adjustments are complete.

5. Maintenance

Proper maintenance will ensure the longevity and performance of your coilover suspension kit:

• Regular Inspection: Periodically inspect all components for signs of wear, damage, or corrosion. Check for loose bolts, nuts, and fittings.
• Cleaning: Keep the coilovers clean from dirt, salt, and debris, especially after driving in harsh conditions. Use mild soap and water, then rinse thoroughly. Avoid high-pressure washing directly on seals.
• Lubrication: Apply a thin layer of appropriate grease to threaded sections and moving parts (e.g., pillow ball mounts) to prevent seizing and reduce friction.
• Alignment Checks: After any significant height or camber adjustments, or if you notice uneven tire wear or handling issues, have a professional alignment performed.
• Spring Preload: Ensure spring preload is set correctly (7-10 mm) as specified. Incorrect preload can affect ride quality and handling.

6. Troubleshooting

If you encounter issues with your coilover suspension, consider the following common problems and solutions:

• Unusual Noises (Clunking/Squeaking):
  • Check all mounting bolts and nuts for proper torque.
  • Inspect for any loose components or contact between the coilover and other vehicle parts.
  • Ensure spring preload is correct and springs are seated properly.
  • Lubricate pillow ball mounts if squeaking occurs.
• Uneven Ride Height:
  • Verify that height adjustments are set equally on both sides of the vehicle (front and rear).
  • Check for any bent or damaged components.
• Poor Handling/Ride Quality:
  • Adjust damping settings. Start with a middle setting and adjust incrementally.
  • Ensure tire pressures are correct.
  • Have a professional alignment performed to check camber, caster, and toe.
• Leaking Shock Absorber:
  • A small amount of oil residue can be normal, but significant leakage indicates a seal failure. Contact support for warranty information.

7. User Tips

• Always prioritize safety. If you are unsure about any installation or adjustment step, consult a certified automotive technician.
• After initial installation and after approximately 500 miles of driving, re-check all fasteners for proper torque.
• Keep a record of your height and damping settings. This will help you return to a preferred setup or troubleshoot issues more effectively.
• Consider the intended use of your vehicle when adjusting settings. A track-focused setup will differ significantly from a comfortable street setup.

8. Warranty and Support

Warranty:

MaXpeedingrods offers a 2-year warranty for any manufacturing defects. This warranty covers defects in materials and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.

Customer Support:

For technical assistance, warranty claims, or any other inquiries, please contact our customer service team:

• WhatsApp: +86 18473951878
• Email: 17680775530@163.com

Our team is available to assist you with any questions regarding your product.

Manufacturing Process:

MaXpeedingrods products undergo rigorous design, manufacturing, and testing processes to ensure high quality and performance. The video below showcases some aspects of our production and quality control.