Please be aware that most KellTrac orders ship within 2-4 weeks. In some (rare) cases, orders can take up to 6-8 weeks to ship. Due to the custom nature of his business and product offerings KellTrac charges a 20% order cancellation fee, Orders can only be cancelled before the product ships. KellTrac does not accept product returns under any circumstance. NO EXCEPTIONS
KellTrac Spec Series Viking Berserker Rear Coilover Kit for S197 Mustangs (KellTrac Spec)
The KellTrac Spec Viking Berserker Rear Coilover Kit for the 2005-2014 Mustang is engineered for cars that are primarily street-driven but built for racing. Designed with street, strip, prep, and no-prep racing in mind, this coilover kit features KellTrac spec'd spring rates, shock shaft travel, compression, and rebound valving that are optimized for S197 SRA applications and the racing style of your choosing. If you're driving your Mustang daily but also taking it to the track, this is the kit for you.
The Berserker series is built for cars that juggle their 20+ mile daily commute with racing at the track. If you're looking for a coilover kit that can handle both street driving and aggressive racing conditions, this is the solution. No other company has helped more street-driven Mustangs hit 1.19 or better sixty-foot times than KellTrac.
This kit is custom-designed for those who demand precision and performance. For best results, we recommend pairing it with KellTrac Caster Camber Plates (available separately). The kit also includes thrust bearings and a spanner wrench upgrade option to make installation easier.
Why Choose Aftermarket High-Performance Coilovers?
Aftermarket coilovers are essential upgrades for drivers who want to enhance their vehicle’s performance, handling, and overall driving experience. With adjustable ride height and damping settings, high-performance coilovers allow you to fine-tune your car’s suspension to match both street comfort and track aggression. These coilovers improve cornering ability, reduce body roll, and increase stability at high speeds, giving you the confidence to push your Mustang to its limits.
Note: Due to the unique design of these coilovers, UPR Products Caster Camber plates are not compatible with this kit.
Key Features
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KellTrac Spec'd Spring Rates for optimized street, strip, prep, and no-prep racing performance.
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Designed for Daily Driving and Aggressive Racing – perfect for those with a 20+ mile daily commute and weekly track days.
- Includes Thrust Bearing and Spanner Wrench upgrade options.
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Limited Remote Support included with every purchase for installation and setup guidance.
Fitment
- 2011-2014 Mustang (S197)
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Part Number: KTI-J424
Complete your setup with KellTrac Caster Camber Plates (sold separately).
