Underground Tuning USA

2018 Dodge Challenger Demon Tune

Regular price $1,490.00 USD
Shipping calculated at checkout.
Pairs well with
Challenger Demon Tune
$1,490.00 USD

This is our tried and tested tune for your Mopar. These tunes were designed on a Dynojet dyno and tested in the real world! With months of research and development, you can trust our tunes will give you the most reliable power!

60+HP | 40TQ GAIN

KEY FEATURES:

  • Underground Tuning Device w/ Map Switching From Mobile Phone!
  • Gain up to 60+ horsepower and 40FT/LBs of torque
  • Improved Throttle Response
  • Top Speed Limiter Removed
  • Neutral/Park Rev Limiter Raised to Redline
  • Ignition timing enhancements
  • Air/Fuel Ratio enhancements
  • PCM Unlock

OPTIONAL FEATURES:

  • Burbles
  • Advanced Burbles (Requires Stage 2)
  • MDS Delete (Removes 4 Cylinder Mode)
  • Multiple Octane Options (91 Octane & 93 Octane)

MOBILE APP FEATURES:

  • Map Switching From Mobile Device (Apple or Android) 
  • Return to Stock at Any Time
  • Diagnosis & read fault codes from the motor & clear fault codes
  • Data log & record the vehicles parameters and send them back to Underground Tuning

REQUIREMENTS BEFORE TUNING:

  • 2015+ Mopar Vehicles Require a PCM Unlock (Included in the Price). You must remove your PCM from your vehicle and ship your PCM to be unlocked (Shipping Label Included in Price) (Unlocking takes 1 business day once arrived). Once reinstalled, you can tune from your Underground Tuning Device!
  • 2018+ Mopar Vehicles Require a Smart Access Cable to be installed. You will receive a Smart Access Cable with your Underground Tuning Device if your vehicle year is 2018 and newer.
  • PCM Removal Video Link
  • Smart Access Installation Link

STAGE TUNE REQUIREMENTS:

  • Stage 1: Factory Headers & Factory Mid Pipes
  • Stage 2: Aftermarket Headers or Cat-less Mid Pipes

Due to different mods, fuel, & conditions, Horsepower and Torque increases will vary.

HOW TO REMOVE PCM


SMART ACCESS CABLE INSTALL 


 

Key Features

1 2 3

1. PHONE FLASHING

Switch Between Tunes On The Fly From Your Mobile Phone

2. DIAGNOSTICS

Read & Clear Check Engine Lights

3. DATALOGGING

Log & Send Vehicle Data to Underground Tuning

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