Dodge Charger/Challenger Hellcat Power Pack

$1,130.00

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

110+HP | 70+TQ GAIN

HELLCAT POWER PACKAGE INCLUDES:

Underground Tuning Device w/ Map Switching From Mobile Phone!
Underground Power Pack Pulley
180 Degree Thermostat
Engine Tune
Transmission Tune
PCM Unlock
Smart Access Cable (2018+ Models)

OPTIONAL FEATURES:

Burbles
Advanced Burbles (Requires Stage 2)
Super Burbles (Requires Stage 2)
MDS Delete (Removes 4 Cylinder Mode)
Multiple Octane Options (91 Octane & 93 Octane)
Spare Unlocked PCM

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

Dodge Charger/Challenger Hellcat Power Pack

RAM TRX Power Pack

$1,130.00

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

110+HP | 70+TQ GAIN

HELLCAT POWER PACKAGE INCLUDES:

Underground Tuning Device w/ Map Switching From Mobile Phone!
Underground Power Pack Pulley
180 Degree Thermostat
Engine Tune
Transmission Tune
PCM Unlock
Smart Access Cable (2018+ Models)

OPTIONAL FEATURES:

Burbles
Advanced Burbles (Requires Stage 2)
Super Burbles (Requires Stage 2)
MDS Delete (Removes 4 Cylinder Mode)
Multiple Octane Options (91 Octane & 93 Octane)
Spare Unlocked PCM

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.

Jeep Grand Cherokee Trackhawk Power Pack

$1,130.00

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

110+HP | 70+TQ GAIN

HELLCAT POWER PACKAGE INCLUDES:

Underground Tuning Device w/ Map Switching From Mobile Phone!
Underground Power Pack Pulley
180 Degree Thermostat
Engine Tune
Transmission Tune
PCM Unlock
Smart Access Cable (2018+ Models)

OPTIONAL FEATURES:

Burbles
Advanced Burbles (Requires Stage 2)
Super Burbles (Requires Stage 2)
MDS Delete (Removes 4 Cylinder Mode)
Multiple Octane Options (91 Octane & 93 Octane)
Spare Unlocked PCM

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.

Jeep Grand Cherokee Trackhawk Power Pack

Dodge Durango Hellcat Power Pack

$1,130.00

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

110+HP | 70+TQ GAIN

HELLCAT POWER PACKAGE INCLUDES:

Underground Tuning Device w/ Map Switching From Mobile Phone!
Underground Power Pack Pulley
180 Degree Thermostat
Engine Tune
Transmission Tune
PCM Unlock
Smart Access Cable (2018+ Models)

OPTIONAL FEATURES:

Burbles
Advanced Burbles (Requires Stage 2)
Super Burbles (Requires Stage 2)
MDS Delete (Removes 4 Cylinder Mode)
Multiple Octane Options (91 Octane & 93 Octane)
Spare Unlocked PCM

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.