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!