Superchips Flashcal+ Performance Programmer — Fits 2018-2021 Jeep Wrangler JL

SKU: BGND_3581-JL
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Sale price$199.95
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Superchips

Superchips engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superchips lineup with fast shipping and expert fitment support — order with confidence.

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Superchips Flashcal+ for Jeep Wrangler JL

Take full control of your 2018-2021 Jeep Wrangler JL with the Superchips Flashcal+ handheld programmer. Designed for the modern Jeeper, this device allows you to calibrate your vehicle's computer for aftermarket modifications, ensuring your Jeep performs exactly how you want it to on and off the trail.

Why Choose Flashcal+?

  • Tire Size Calibration: Correct your speedometer and shift points after installing larger off-road tires.
  • Gear Ratio Adjustments: Easily update your computer to account for new ring and pinion gear sets.
  • TPMS Options: Adjust or disable your tire pressure monitoring system thresholds.
  • User-Friendly Interface: Simple plug-and-play design that connects directly to your OBDII port.

The Flashcal+ is an essential tool for any JL owner who has upgraded their wheels, tires, or drivetrain components. By correcting the vehicle's computer, you ensure accurate speedometer readings, proper transmission shift timing, and optimal engine performance. This device eliminates the guesswork associated with modifications, providing a seamless driving experience. Whether you are hitting the rocks or cruising the highway, the Flashcal+ is the smart choice for Jeep customization. Find this and other performance electronics for your build at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Superchips

Superchips engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superchips lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superchips Flashcal+ for Jeep Wrangler JL

Take full control of your 2018-2021 Jeep Wrangler JL with the Superchips Flashcal+ handheld programmer. Designed for the modern Jeeper, this device allows you to calibrate your vehicle's computer for aftermarket modifications, ensuring your Jeep performs exactly how you want it to on and off the trail.

Why Choose Flashcal+?

  • Tire Size Calibration: Correct your speedometer and shift points after installing larger off-road tires.
  • Gear Ratio Adjustments: Easily update your computer to account for new ring and pinion gear sets.
  • TPMS Options: Adjust or disable your tire pressure monitoring system thresholds.
  • User-Friendly Interface: Simple plug-and-play design that connects directly to your OBDII port.

The Flashcal+ is an essential tool for any JL owner who has upgraded their wheels, tires, or drivetrain components. By correcting the vehicle's computer, you ensure accurate speedometer readings, proper transmission shift timing, and optimal engine performance. This device eliminates the guesswork associated with modifications, providing a seamless driving experience. Whether you are hitting the rocks or cruising the highway, the Flashcal+ is the smart choice for Jeep customization. Find this and other performance electronics for your build at GGCRACING.

Product Details

Product Description

About Superchips

Superchips engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superchips lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Superchips Flashcal+ for Jeep Wrangler JL

Take full control of your 2018-2021 Jeep Wrangler JL with the Superchips Flashcal+ handheld programmer. Designed for the modern Jeeper, this device allows you to calibrate your vehicle's computer for aftermarket modifications, ensuring your Jeep performs exactly how you want it to on and off the trail.

Why Choose Flashcal+?

  • Tire Size Calibration: Correct your speedometer and shift points after installing larger off-road tires.
  • Gear Ratio Adjustments: Easily update your computer to account for new ring and pinion gear sets.
  • TPMS Options: Adjust or disable your tire pressure monitoring system thresholds.
  • User-Friendly Interface: Simple plug-and-play design that connects directly to your OBDII port.

The Flashcal+ is an essential tool for any JL owner who has upgraded their wheels, tires, or drivetrain components. By correcting the vehicle's computer, you ensure accurate speedometer readings, proper transmission shift timing, and optimal engine performance. This device eliminates the guesswork associated with modifications, providing a seamless driving experience. Whether you are hitting the rocks or cruising the highway, the Flashcal+ is the smart choice for Jeep customization. Find this and other performance electronics for your build at GGCRACING.

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