Heavy Duty (HD) Bilsteins work very well in street applications with a variety of both conventional springs and coil-over conversions. They are designed to deliver the best possible ride quality coupled with impressive street performance.

While they are non-adjustable, Bilstein's unique deflective-disc valve design instantaneously self-adjusts to changing road surfaces. Their performance does not degrade with age, usage, or heat, requiring no compensating manual adjustments as with other brands. Bilstein uses a patented mono-tube design that allows for a larger piston size than is possible with a twin-tube damper. The mono-tube design provides better heat dissipation to keep the damper's oil cooler, and decreases heat-induced damper fade. High-pressure nitrogen gas prevents oil foaming and fading. The unique inverted design of the Bilstein strut allows for very large strut shaft bushings, which are less prone to deflection. The inverted strut design also keeps the oil seal protected from the elements. Every Bilstein damper is tested on a shock dyno before leaving the factory to ensure quality.

These Bilstein shocks include dustcovers. 

• Firm, yet good ride quality, as is expected of a performance car
• Bilstein struts and shocks are made with patented mono-tube technology
• Inverted strut design has very large strut shaft bushings for greater resistance to deflection from cornering loads, and protection of the oil seal
• High nitrogen gas pressure prevents oil foaming and resultant fading
• Monotube design has better heat dissipation than twin-tube dampers, keeps the oil cooler, and decreases heat-induced damper fade
• Velocity-sensitive valving improves ride quality
• Each Bilstein strut and shock is tested on a shock dyno
• Bilstein struts and shocks include dustcovers

Eibach 05-2012 Mustang Pro Damper Kit

**Fits 05-2010 Mustang GT and V6 as well as 07-2013 Shelby GT500**

PRO-DAMPER Kit (Set of 4 Dampers)

• Performance Shock Absorbers
• High Performance Handling
• Controlled, Compliant Ride Quality
• Precision Tuned Damping for PRO-KIT & SPORTLINE
• Two-Year Warranty

Eibach developed PRO-DAMPERs specifically to complement the unique characteristics of Eibach PRO-KIT and SPORTLINE springs, taking full advantage of the increased spring rate and lower center of gravity. The result is enhanced performance throughout the entire working range of the suspension.

Eibach engineers tuned PRO-DAMPER damping characteristics to achieve maximum performance, but without excessive stiffness or ride harshness. This precise tuning takes time and suspension expertise - a commitment Eibach undertakes to produce a damper worthy of the Eibach name. Eibach PRO-DAMPERs - the ultimate in shock absorber tuning and technology.

Koni Sport "Yellows" are a Koni's original and still the best premium adjustable shock and strut unit they offer.

Koni Sport Yellows feature an external adjustment right at the top of the unit for rebound adjustment. This adjustment allows you to soften the ride for daily driving or firm it up for handling performance and track use. Adjustment is done on the car by simply using the provided knob to turn the adjuster clockwise to soften the ride or counter clock wise to stiffen the ride.

These shock and strut units are a direct bolt on, twin tube high pressure gas design that will enhance both ride quality and handling performance.

All Koni Sport Yellow units come with a lifetime warranty against manufacturing defects.

Note: Koni Sport Yellow shocks and struts are sold and priced individually. 2 struts and 2 shocks make a full set. Koni Yellow units are adjustable for rebound only.

Product Benefits

• Big handling improvements
• Best KONI shock for all lowering springs
• External rebound adjustment
• Lifetime Warranty

Koni Sport "Yellows" are a Koni's original and still the best premium adjustable shock and strut unit they offer.

Koni Sport Yellows feature an external adjustment right at the top of the unit for rebound adjustment. This adjustment allows you to soften the ride for daily driving or firm it up for handling performance and track use. Adjustment is done on the car by simply using the provided knob to turn the adjuster clockwise to soften the ride or counter clock wise to stiffen the ride.

These shock and strut units are a direct bolt on, twin tube high pressure gas design that will enhance both ride quality and handling performance.

All Koni Sport Yellow units come with a lifetime warranty against manufacturing defects.

Note: Koni Sport Yellow shocks and struts are sold and priced individually. 2 struts and 2 shocks make a full set. Koni Yellow units are adjustable for rebound only.

Product Benefits

• Big handling improvements
• Best KONI shock for all lowering springs
• External rebound adjustment
• Lifetime Warranty

Ready to step up to an adjustable suspension setup on your 2005 and up Mustang? Buy the one with the most research and engineering, and all out track testing behind it. Designed and engineered in the U.S.A!

Steeda's billet adjustable suspension system for the S197 Mustang includes custom designed adjustable front struts and matched QA1 rear shocks which feature infinite simultaneous adjustment of compression and rebound. Not partial or no adjustment like other lesser kits.

The front coil over system is designed to use our exclusive upper strut mount kit which eliminates the weak factory upper spring perch which is prone to 'popping with increased spring rates and provides +/- 1 degree of camber adjustment not available with the factory mount.

The rear system features ride height adjusters for the rear of the vehicle which accept a coil over style spring, and QA1 shocks.

Two complete kits are available depending on whether you have already upgraded to our 555-8120 upper strut mount kit, which only requires replacing the upper spring cup, or you have the factory strut mount.

This kit is made from billet aluminum in our in house manufacturing facility and features anodized parts for long lasting protection against oxidation and roller bearings to make adjustments a snap. Fully adjustable for shock valving and ride height. Ride height adjustment varies based on spring rate but typical adjustment range available is stock ride height down to a full 2 inch lowering.

Note: Kit does not come with springs but please choose spring option form the drop down.