2014-2015 Infiniti Q50 Tune (VQ37)
This is our tried and tested tune for your VQ37. 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!
KEY FEATURES:
- Underground Tuning Device (Powered by EcuTek) w/ Map Switching From Mobile Phone & Steering Wheel!
- Gain up to 25 horsepower
- Multiple Octane Options (91 Octane & 93 Octane)
- Improved Throttle Response
- Top Speed Limiter Removed
- Neutral/Park Rev Limiter Raised to Redline
- Ignition timing enhancements
- Air/Fuel Ratio enhancements
STAGE 1:
- REQUIREMENTS: None
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 15 Horsepower
- TUNE OPTIONS: Burbles
STAGE 2:
- REQUIREMENTS: Catless Downpipes
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 25 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
STAGE 2+:
- REQUIREMENTS: Catless Downpipes, Factory GTR Injectors or Injector Dynamics 1050 CC Injectors, Flex Fuel Kit (Speciality Z)
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 45 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
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:
- This Tune is PLUG & PLAY! Just plug the Underground Tuning Device into your OBDII Port and Tune From Your Phone!

Infiniti G37 Tune (VQ37)
This is our tried and tested tune for your VQ37. 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!
KEY FEATURES:
- Underground Tuning Device (Powered by EcuTek) w/ Map Switching From Mobile Phone & Steering Wheel!
- Gain up to 25 horsepower
- Multiple Octane Options (91 Octane & 93 Octane)
- Improved Throttle Response
- Top Speed Limiter Removed
- Neutral/Park Rev Limiter Raised to Redline
- Ignition timing enhancements
- Air/Fuel Ratio enhancements
STAGE 1:
- REQUIREMENTS: None
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 15 Horsepower
- TUNE OPTIONS: Burbles
STAGE 2:
- REQUIREMENTS: Catless Downpipes
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 25 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
STAGE 2+:
- REQUIREMENTS: Catless Downpipes, Factory GTR Injectors or Injector Dynamics 1050 CC Injectors, Flex Fuel Kit (Speciality Z)
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 45 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
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:
- This Tune is PLUG & PLAY! Just plug the Underground Tuning Device into your OBDII Port and Tune From Your Phone!

Nissan 370Z Tune (VQ37)
This is our tried and tested tune for your VQ37. 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!
KEY FEATURES:
- Underground Tuning Device (Powered by EcuTek) w/ Map Switching From Mobile Phone & Steering Wheel!
- Gain up to 25 horsepower
- Multiple Octane Options (91 Octane & 93 Octane)
- Improved Throttle Response
- Top Speed Limiter Removed
- Neutral/Park Rev Limiter Raised to Redline
- Ignition timing enhancements
- Air/Fuel Ratio enhancements
STAGE 1:
- REQUIREMENTS: None
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 15 Horsepower
- TUNE OPTIONS: Burbles
STAGE 2:
- REQUIREMENTS: Catless Downpipes
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 25 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
STAGE 2+:
- REQUIREMENTS: Catless Downpipes, Factory GTR Injectors or Injector Dynamics 1050 CC Injectors, Flex Fuel Kit (Speciality Z)
- RECOMMENDATIONS: Catback Exhaust
-
GAINS: 45 Horsepower
- TUNE OPTIONS: Burbles, Advanced Burbles, & Super Burbles
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:
- This Tune is PLUG & PLAY! Just plug the Underground Tuning Device into your OBDII Port and Tune From Your Phone!
