What Is the Rev9 Hyper-Street II Coilover Kit?

The Rev9 Hyper-Street II is a full coilover suspension system that replaces the factory shocks, struts, and springs with a height-adjustable mono-tube shock assembly.

Unlike lowering springs that only reduce ride height, coilovers allow drivers to fine-tune both suspension height and damping characteristics.

The kit features:

• Full-length ride height adjustment
• Mono-tube shock construction
• 32-way rebound damping adjustment
• Performance coil springs
• Pillow ball camber plates (front where applicable)
• Complete front and rear suspension setup

This allows owners to customize both appearance and performance.

Hyper-Street II coilover suspension upgrade features mono-tube shocks with 32 clicks rebound settings and entire length adjustable.

Vehicle Compatibility

The Rev9 Hyper-Street II Coilover Kit fits:

Not Compatible With:

• Chevrolet Impala Police Package (PPV)
• Fleet Taxi Models

Always verify vehicle specifications before ordering.

Key Features

Full-Length Ride Height Adjustment

One of the biggest advantages of the Hyper-Street II system is independent ride height adjustment.

Benefits include:

• Lower vehicle without sacrificing suspension travel
• Fine-tune vehicle stance
• Adjustable corner balance potential
• Better overall ride quality compared to sleeve-style systems

This design is preferred by enthusiasts because ride height adjustments don’t dramatically alter spring preload.

Mono-tube shocks provides larger capacity for gas and oil to enhance at ease level of typical lowering vehicle. Special 32 clicks of valving Permits user to fine tune rebound force settings. Independent spring tension and entire length adjustable Permits drop without sacrifice comfort by shorten pitch distance.

• Full Steel Alloy Constructions With Aluminum Hardware
• Mono-Tube Shocks Provide Larger Capacity of Oil And Gas
• 32 Clicks of Rebound Force Adjustment
• Full Length Adjustment – Lowers The Car Without Ruining Spring Tension
• Independent Spring Tension – Custom Stiffness Without Change Ride Height

Compatible With Chevrolet Impala 2006 2007 2008 2009 2010 2011 2012 2013; With the exception of Police Car and Taxi

32-Way Adjustable Damping

The Hyper-Street II offers 32 levels of rebound adjustment.

This allows drivers to tune suspension behavior for:

• Daily driving
• Highway cruising
• Aggressive street driving
• Show car applications

Softer settings improve comfort while firmer settings improve responsiveness and body control.

Mono-Tube Shock Design

Mono-tube dampers offer several advantages over traditional twin-tube designs.

Benefits include:

• Better heat dissipation
• More consistent damping
• Improved handling response
• Increased durability under spirited driving

For performance applications, mono-tube shocks are generally preferred.

Spring Rate: Front – 8 kg/mm (448 lbs/inch) | Rear – 5 kg/mm (280 lbs/inch) // Best Mount: Yes, Pillow Ball Camber Plate | Yes, Usual Best Mount // Damping Levels: 32 Ways
Specially Designed Coil Springs Over Shock Kit To Lower The Vehicle Right kind Way

Spring Rates

The Hyper-Street II uses performance-oriented spring rates engineered to improve handling while maintaining reasonable street comfort.

These rates provide a noticeable reduction in body roll while keeping the Impala comfortable enough for daily driving.

Improved Handling Performance

Factory Impalas prioritize comfort, but that often comes at the expense of responsiveness.

Installing coilovers can improve:

• Steering response
• Cornering stability
• Brake dive reduction
• Acceleration squat reduction
• Overall driver confidence

The result is a sedan that feels significantly more controlled during aggressive driving.

Camber Plate Benefits

The included pillow ball camber plates provide additional suspension tuning flexibility.

Advantages include:

• Adjustable front alignment
• Increased steering precision
• Reduced suspension deflection
• Better track-oriented setup potential

For enthusiasts seeking maximum performance, camber adjustment is a valuable feature rarely found on entry-level suspension kits.

Mono Tube Shock With Steel Alloy Body And Valving Permits 32 Clicks Rebound Force Adjustment; Independent Spring Tension And Ride Height Settings To Allow Stiffness And Ride Height To Be Adjusted One by one
These Coilovers are “Lowering Kit” and DOES NOT adjust to Factory Ride Height. No Installation Instructions; Install By Experienced Professionals Advisable

Installation Considerations

Professional installation is recommended for best results.

Installation typically includes:

• Removal of factory struts and springs
• Coilover assembly installation
• Ride height adjustment
• Suspension inspection
• Four-wheel alignment

Proper alignment is critical after installation.

Ignoring alignment can lead to:

• Uneven tire wear
• Poor handling
• Reduced suspension performance

Pros and Cons

Pros

• Full coilover suspension system
• Independent ride height adjustment
• 32-way damping control
• Mono-tube shock design
• Includes camber plates
• Improved handling and appearance
• Excellent value for the price

Cons

• Ride quality may be firmer than stock
• Professional installation recommended
• Regular adjustments may be required
• Not intended for maximum comfort-focused drivers

Frequently Asked Questions

Are Rev9 Hyper-Street II coilovers good for daily driving?

Yes. When adjusted properly, they provide a good balance between performance and comfort for daily-driven vehicles.

How low can the Impala be lowered?

Ride height depends on wheel and tire setup, but the full-length adjustable design provides a wide range of lowering options.

Do these coilovers improve handling?

Absolutely. Reduced body roll, improved steering response, and increased suspension control are among the most noticeable benefits.

Do I need an alignment after installation?

Yes. A professional alignment is required after any major suspension modification.

Final Thoughts

The Rev9 Hyper-Street II Coilover Kit is one of the best budget-friendly suspension upgrades available for the 2006-2013 Chevrolet Impala. With mono-tube shocks, 32-way damping adjustment, full-length ride height control, and included camber plates, it offers features normally found on more expensive systems.

If you’ve ever looked at your stock Impala carving through corners like an overloaded cruise ship, these coilovers are the upgrade that helps turn that land yacht into something far more entertaining.