KF 350 Track 1 – Koni Coil-Over Set | GR350 Track

Original price was: $874.50.Current price is: $795.00.

Coil over shock kit w/o spring track valving double eyelet 7in stroke (pair).


Coil over shock kit w/o spring track valving double eyelet 7in stroke (pair).

Quick Facts

  • Griggs race winning custom valving available
  • Available in dual adjustable configuration so you can adjust ride quality or transitional characteristics
  • Requires little to no service over an almost indefinite lifespan.

Recommended for street/track use.

The two most important elements in a performance chassis are the tires and shocks (or struts).  Dampers are a better term as their primary purpose is to dampen motion of the chassis.  So far only Koni provides the quality and performance we demand of dampers to be included in a GR40 Kit.  And then only in units that we have custom built to our specifications.

Proven by over 50 years of international competition including Formula One, and the only part of our GR40 systems not made in the US, The Dutch company is owned by the US conglomerate, ITT automotive group.  Griggs Racing has worked closely with Koni in developing shocks and struts over the years that do exactly as required in delivering a serious performing chassis while improving handling, traction, ride quality, tire life, and safety.  Also, they live virtually forever with very little service required.  Koni’s are an investment you will have for a very long time.  They are not “throw away” shocks.

Most replacement shock offerings usually “feel” pretty good upon replacement but after a short time their “low speed” characteristics degrade and handling goes away.  Plus all are made with inadequate low speed damping, especially on compression (bump or jounce) Lesser quality components are unable to provide the level we seek in offering the best performance in chassis kits and options.  Plus the adjustability is easy, if you follow our instructions.

Most Griggs Racing standard offerings for GR40 and GR350 Mustangs are not found in the Koni catalog under Mustang.  These shocks are derivatives of the Koni oval track program and the struts are originally from the Koni showroom stock racing program. With valving perfected to suit our standards, and the win record of GR40 cars to prove the point, these are a necessary step to tuning any Mustang chassis to perfection.

The categories of shocks are:

Dual Adjustable:  More digressive compression curve and simple on car adjustability of rebound makes this the serious club racer’s choice.  Lighter aluminum body reduces unsprung weight for better handling and a big improvement in corner exit adhesion.  Dual adjustable shocks are excellent for use on the rear of serious Drag cars as well.

Single adjustable shocks: Rebound is adjustable, however we recommend you install them as delivered on all stick axle applications.  Compression valvings offered are:

Soft – Street use only when the best ride is the requirement.

Medium – Most popular for cars driven hard on street and road courses, autocross track as well as American Iron race cars. These are also the most popular street-strip rear shocks

Firm – These are generally used on rear of high powered drag cars with and sticky slicks.  Affords better launch control and opposes tire shake.