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Quadratec® 2.5” Coil Spring Suspension Kit with FOX IFP Mono-Tube Shocks for 07-17 Jeep® Wrangler JK

The Quadratec® Difference
Quadratec’s Maximum Duty Suspension Lift Kits just got a whole lot better! We’ve teamed up with FOX Shocks to engineer a perfectly tuned and valved shock specifically designed for our Maximum Duty Suspension Kits. Fox IFP Mono-Tube shocks contain the latest in technology to transform the performance of your Wrangler. They use race-proven damping control to provide a comfortable on-road ride and predictable offroad handling in even the toughest conditions. The Internal Floating Piston (IFP) mono-tube design separates the shock oil from the high-pressure, nitrogen-charged gas chamber. The IFP eliminates oil aeration allowing maximum performance! Our JK kits proudly pass the rigorous FMVSS 126 physical testing that accurately measures how the vehicle reacts after our suspension modifications. Test results prove that our suspension kits work in harmony with the Electronic Stability Control (ESC) system and retain the effectiveness for both vehicle performance and safety to reduce rollovers. Our kits come with excellent installation instructions with step by step photos and are easy to install with basic skills and hand tools. Quadratec’s Maximum Duty Coil Spring Suspension Kits add an additional 2-1/2” of suspension and an excellent choice for fitting up to 34” tall tires. These premium kits replace your four factory length coil springs with our longer Maximum Duty Coils. Our coil springs begin with premium steel alloy material to ensure consistency and are preset to add memory and eliminate settling. Each spring CNC wound and then load tested to certify consistency through the spring’s complete travel cycle. Our progressive rate coil spring are engineered to be within 10% of the factory rates with all the vigorous off-road handling capabilities while maintaining the smooth factory-like characteristics. Coil springs are easy to install with simple hand tools and do not require a spring compressor. The 2-1/2” Coil Spring kits include four Quadratec exclusive shock absorbers to help maximize both the street performance and off road capabilities.
Installation Notes
Installation Difficulty:
Level 3Advanced
Parts Included
  • Front Coil Springs
  • Rear Coil Springs.
  • Front Bump Stop Extensions
  • Rear Bump Stop Extensions
  • Front IPF Shock Absorbers
  • Rear IPF Shock Absorbers
  • Rear Track Bar Re-alignment Bracket
  • Front Brake Line Brackets
  • Rear Brake Line Brackets
Limited Lifetime Warranty
  • Features: Short Arm
  • Lift Height (Lift Kits): 2.50, 2.5
  • Shocks Included: With Shocks
  • Max Tire Size: 34
  • Lift Height Range: 0 - 2.5 inch
  • Included Parts: Brake Line Brackets, Coil Springs, Hardware, Rear Track Bar Bracket or Brake Line Brackets, Bump Stops, Coil Springs, Rear Track Bar Bracket
  • Jeep Wrangler 2-Door (JK)

  • 2017 Jeep Wrangler 2-Door (JK)
  • 2016 Jeep Wrangler 2-Door (JK)
  • 2015 Jeep Wrangler 2-Door (JK)
  • 2014 Jeep Wrangler 2-Door (JK)
  • 2013 Jeep Wrangler 2-Door (JK)
  • 2012 Jeep Wrangler 2-Door (JK)
  • 2011 Jeep Wrangler 2-Door (JK)
  • 2010 Jeep Wrangler 2-Door (JK)
  • 2009 Jeep Wrangler 2-Door (JK)
  • 2008 Jeep Wrangler 2-Door (JK)
  • 2007 Jeep Wrangler 2-Door (JK)
  • Jeep Wrangler Unlimited 4-Door (JK)

  • 2017 Jeep Wrangler Unlimited 4-Door (JK)
  • 2016 Jeep Wrangler Unlimited 4-Door (JK)
  • 2015 Jeep Wrangler Unlimited 4-Door (JK)
  • 2014 Jeep Wrangler Unlimited 4-Door (JK)
  • 2013 Jeep Wrangler Unlimited 4-Door (JK)
  • 2012 Jeep Wrangler Unlimited 4-Door (JK)
  • 2011 Jeep Wrangler Unlimited 4-Door (JK)
  • 2010 Jeep Wrangler Unlimited 4-Door (JK)
  • 2009 Jeep Wrangler Unlimited 4-Door (JK)
  • 2008 Jeep Wrangler Unlimited 4-Door (JK)
  • 2007 Jeep Wrangler Unlimited 4-Door (JK)
Part NumberCatalog #Wrangler Model Price
16400 031216400.0312Wrangler JK 2 Door$639.00
16400 031316400.0313Wrangler Unlimited JK 4 Door $639.00
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