Vehicle Fitment

The Eibach Sportline Spring Kit 4.7328 fits:

Chrysler 300C

• 2005 Chrysler 300C
• 2006 Chrysler 300C
• 2007 Chrysler 300C
• 2008 Chrysler 300C

Kit includes:

• Front lowering springs
• Rear lowering springs
• Complete set of four springs

Designed specifically for the LX-platform Chrysler 300C suspension geometry.

What Makes Eibach Sportline Different?

Unlike mild lowering springs designed primarily for appearance, the Sportline series is engineered for enthusiasts seeking maximum visual impact and improved chassis performance.

The Sportline philosophy focuses on:

• Aggressive lowering
• Enhanced handling
• Improved cornering performance
• Reduced body roll
• Sportier driving dynamics

For many enthusiasts, Sportline represents the ideal balance between street use and performance driving.

Extreme Performance With The Lowest Imaginable Drop
Race-Automotive Like Handling
Decrease Heart Of Gravity
Forestall Faster, Corner Quicker And Get Higher Mpg!
Progressive Spring Design For Superb Ride High quality

Aggressive Lowered Stance

The biggest attraction of the Sportline kit is the dramatic reduction in ride height.

Benefits include:

Reduced Wheel Gap

The factory Chrysler 300C sits relatively high from the factory.

Sportline springs significantly reduce fender gap, creating a cleaner and more aggressive profile.

Improved Wheel Fitment

Lower ride height helps aftermarket wheels and tires fill the wheel wells more effectively.

Show-Car Appearance

The lowered stance gives the Chrysler 300C a premium, performance-oriented look that complements its muscular body lines.

The transformation is substantial enough that many owners consider lowering springs the single most effective visual modification available.

Lower Center of Gravity

Lowering the vehicle’s center of gravity offers more than cosmetic improvements.

Performance benefits include:

• Improved balance
• Better cornering stability
• Reduced weight transfer
• Enhanced responsiveness

A lower center of gravity allows the suspension to work more efficiently during acceleration, braking, and cornering.

Race-Inspired Handling Characteristics

Eibach designed the Sportline kit to improve handling performance in multiple areas.

Reduced Body Roll

The vehicle remains flatter during aggressive cornering.

Faster Turn-In

Steering response becomes sharper and more immediate.

Increased Stability

Drivers often report improved confidence during:

• Highway driving
• Sweeping turns
• Quick lane changes
• Spirited driving

Better Chassis Control

The suspension feels more connected and composed under load.

For a large luxury sedan like the Chrysler 300C, the difference can be surprisingly noticeable.

Progressive Spring Design

One of the standout features of Eibach Sportline springs is the progressive spring rate design.

Unlike linear-rate springs that maintain a constant spring rate, progressive springs offer:

Comfortable Daily Driving

The softer initial spring rate helps absorb normal road imperfections.

Increased Performance Under Load

As suspension compression increases, the spring rate stiffens to improve control.

Improved Ride Quality

The result is a suspension system that balances comfort and performance more effectively than many traditional lowering springs.

This progressive design is one reason Eibach has earned a reputation as one of the industry’s most respected suspension manufacturers.

Potential Fuel Economy Benefits

While suspension modifications are not typically installed for fuel savings, Eibach notes that reducing ride height may contribute to:

• Improved aerodynamics
• Reduced drag
• Slight efficiency gains

Any fuel economy improvements will vary based on driving style, vehicle condition, and wheel/tire combinations.

Why Lower a Chrysler 300C?

The Chrysler 300C’s design lends itself exceptionally well to suspension modifications.

Enhanced Appearance

The lowered stance accentuates the vehicle’s muscular proportions.

Better Handling

Reducing body movement improves overall driving confidence.

Improved Wheel Fitment

Aftermarket wheels appear more aggressive and proportional.

Increased Enthusiast Appeal

Lowered 300C models remain popular among LX-platform enthusiasts.

Ride Quality Expectations

Because the Sportline kit prioritizes performance, drivers should expect:

• Firmer ride quality
• Increased road feel
• Improved body control
• Better handling response

However, the progressive spring design helps prevent the harshness often associated with aggressive lowering springs.

Most owners find the tradeoff worthwhile given the significant improvements in appearance and handling.

Installation Considerations

Before installing lowering springs, inspect:

• Struts and shocks
• Control arm bushings
• Sway bar links
• Ball joints
• Suspension mounts

Vehicles with high mileage may benefit from replacing worn suspension components during installation.

After installation:

• Perform a professional alignment
• Verify wheel and tire clearance
• Re-torque suspension hardware
• Check suspension travel

Proper alignment is essential for maximizing tire life and handling performance.

Eibach Sportline vs Pro-Kit

Many Chrysler 300 owners compare Eibach’s two most popular spring options.

Eibach Pro-Kit

Pros:

• Moderate drop
• Factory-like ride quality
• Conservative appearance

Eibach Sportline

Pros:

• More aggressive drop
• Sharper handling
• Sportier appearance

Cons:

• Firmer ride
• Reduced suspension travel

For enthusiasts seeking the lowest practical ride height, Sportline is typically the preferred choice.

Final Thoughts

The Eibach Sportline Performance Spring Kit 4.7328 for the 2005-2008 Chrysler 300C is one of the most respected lowering spring upgrades available for the LX platform. Combining aggressive ride height reduction, progressive spring technology, improved cornering performance, and Eibach’s proven engineering expertise, the Sportline kit transforms both the appearance and handling of the Chrysler 300C.

For owners looking to eliminate wheel gap, improve road manners, and give their 300C a true performance-sedan stance, the Eibach Sportline kit remains one of the best suspension upgrades available.