Coilovers Suspension Kit

Yes, if you match the kit to your driving style. Adjustable coilovers give you control that worn factory shocks and lowering springs alone cannot provide.

Key reasons they are worth it:

• Worn stock shocks cause bouncing, poor braking, and uneven tire wear. Quality coilover suspension kits restore control and predictability.
• Lowering springs on stock shocks often bottom out because the factory damper cannot control the stiffer spring. A complete kit solves this with matched springs and dampers.
• Evil Energy twin tube kits are valved for street comfort, absorbing road imperfections while reducing body roll and sharpening steering response.
• Heat treated steel springs tested to 60,000+ fatigue cycles with anti corrosion coating are built for years of daily use.
• Every kit includes spanner wrenches for tool free ride height adjustment.

For daily driving, start with damping in the middle range. Drive 500 miles to let everything settle, then adjust to your preference. Coilovers will feel firmer than new factory suspension, but a properly tuned twin tube setup is far from the harsh ride that cheap, aggressively valved coilovers produce.

Four factors narrow it down: vehicle compatibility, driving goals, damper type, and spring rate.

Vehicle compatibility: Evil Energy coilovers are vehicle specific with direct bolt on fitment. No cutting, no welding. Check the fitment table on each product page for your exact year, make, model, and trim. For example, the Subaru WRX kit fits 2015 to 2021 WRX and WRX STi, while the VW MK5 MK6 kit fits 2006 to 2014 VW GTI, Rabbit, Jetta and Audi A3 8P in FWD only.

Driving goals determine damper type:

• Daily driver prioritizing comfort: Choose a twin tube kit with street tuned valving, like the VW MK5 MK6 or Honda Civic EK sets.
• Mixed street and occasional track: Choose a 32 level adjustable mono tube kit, like the Mercedes W203 or Acura ILX sets, for better heat dissipation during aggressive driving.
• Stance and show builds: Any kit works since all Evil Energy coilovers offer 2 to 4 inches of ride height adjustment.

Spring rate: Evil Energy pre matches spring rates (6 to 10 kg/mm) for each vehicle application, so you do not need to calculate rates yourself. Top mounts are included with every kit. Some models feature pillow ball top mounts with camber plates; others use rubber mounts for quieter daily driving. You never need to buy mounts or brackets separately.

Not necessarily. Ride stiffness depends on three things you control: damper type, spring rate, and damping setting.

Damper type is the biggest factor. Twin tube shocks absorb small bumps more effectively for a smoother daily ride. Mono tube shocks dissipate heat faster for performance driving but can feel harsh on city streets. Evil Energy clearly labels each kit's damper type.

If ride quality is your priority, start with a twin tube kit. Spring rates are pre matched between 6 and 10 kg/mm depending on the vehicle, balancing body control with comfort. For 32 level adjustable kits, start at the softest setting (levels 0 to 8) for daily driving. The ride will feel firm and controlled, not punishing.

One key note: lowering your car to the maximum 4 inches reduces suspension travel and makes any setup feel stiffer. For daily comfort, a moderate 2 inch drop gives you better stance without sacrificing ride quality.

Proper installation is critical for safety and performance. Here is what matters most.

Before installing: Measure current ride height at all four corners. Set coilovers to a mid range height before installation. Apply anti seize to all adjustment threads, especially in salt belt areas.

During installation: Evil Energy coilovers are direct bolt on replacements. Each kit includes 4 pre assembled units and 2 spanner wrenches. Torque all fasteners to manufacturer specs. Ensure both coilovers on the same axle are set to the same height.

After installation (do not skip these):

• Get a professional four wheel alignment. Changing ride height alters camber, toe, and caster. Driving without alignment causes rapid uneven tire wear.
• Drive gently for 500 miles as the break in period.
• Re torque all fasteners after break in.
• Recheck ride height after springs settle over the first few weeks.
• For 32 level adjustable kits, start damping at the middle setting.

Professional installation is recommended. Typical labor is 3 to 4 hours plus alignment. If you have suspension experience and proper tools, this is DIY friendly. Otherwise, professional install costs far less than replacing tires ruined by poor alignment. For more context on how suspension fits into a complete vehicle build, see Evil Energy's muscle car restoration guide.

Both lower your car and improve handling, but they serve different priorities.

Choose coilovers when you want:

• Mechanical simplicity: No compressor, air lines, valves, or electronics. Fewer parts mean fewer failure points.
• Consistent performance: Spring rate and damping stay constant. You always know how the car behaves in a corner.
• Lower cost: Evil Energy coilover kits range from 239.99to239.99to484.99. A quality air suspension system with management typically costs $2,000+.
• Track and autocross use: Lighter, more predictable at the limit, easier to corner balance.

Choose air suspension when you want:

• On the fly height adjustment from inside the cabin.
• Maximum drop for stance (air out to the ground when parked).
• Variable ride quality without tools.

Trade offs of air suspension: Adds 30 to 50 pounds of weight. More complexity means more maintenance (air lines leak, compressors fail, bags rupture). Higher total cost beyond the kit itself. Less track focused because air bag spring characteristics change with pressure.

For most enthusiasts who want better handling, lower stance, and a reliable daily driver, coilovers deliver 90% of the benefit at 25% of the cost. Browse Evil Energy's coilover suspension kit collection. If you lean toward air suspension, Evil Energy also offers air tank kits and a 12V 200PSI air compressor.