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Now you can send in your ECU to Z1 for a one time UpRev Tuning reflash.  The UpRev tuning will allow your car to unlock maximum power from your mods and lets you get your money's worth from all your performance upgrades. 

Once received, we will reprogram the ECU with a new file that is customized to your needs. We attempt to complete return shipping within 48 hours of receipt in most cases. Please be sure to ship with a traceable method to ensure delivery and feel free to call us once delivered to ensure a quick turnaround.

Parameters that we will tune include:

  • Up to 5 Maps on cruise control equipped vehicles
  • Idle RPM
  • Speed Limiter
  • Electronic Throttle Control to achieve Wide Open Throttle at all speeds.
  • Rev Limiter
  • AFR Targets
  • Fuel Compensation
  • Ignition Timing Advance
  • Cam Phasing for equipped vehicles.
  • Optional: NATS (Nissan Anti-Theft System) disable is also available using the options below.

NOTE: Oversized fuel injectors, oversized intakes, and forced induction cars are not available for Mail-in or E-Tunes except where otherwise optioned. Custom tuning required. Nitrous tunes may be subject to additional fees.

Optional 3'' intake option below ONLY applies to 2007+ models with VQ35HR or VQ37VHR powertrains. Available for stock or 600cc/GTR Fuel Injectors.

In house tuning is also available, please contact John service for details or to set up an appointment. or 770-838-7777 ext 311.

Please download and print off the required tuning spec sheet from this link and include it with your ECU.

NOTICE: This product will not help you pass emissions if your vehicle is modified or has existing emissions associated problems.


Available Options:


Tune For 3'' Intakes:


What our customers say...

Totally worth it for budget builds. I'm always on call and never know when I'll have a day off to ...

Rated by Verified Customer Purchase Read More

I was slightly skeptical about this reflash at first but decided I'd give it a try. It was a night ...

Rated by Verified Customer Purchase Read More

Questions our customers have asked...

I was curious as to what the options are to return to stock after this tune?

Response: The Osiris management can carry a stock tune and the software is also removable or transferable to another compatible vehicle. This is a huge perk with Osiris software compared to the competition.

Is this product compatible with the vq35de engine and ecu in the g35? If so is there any other equipment I would need to add to my car to make this work properly? Thanks

Response: It will work on all G models except 2003 G35 Automatic Sedans.

Good morning. I am interested in the mail in flash service. What size intake is considered oversized and cannot be programmed via mail? I am considering either Mishimoto 3" or Admin tuning 3.5" intakes.

Response: Unfortunately, we only offer the mail in service with intakes that retain the OEM diameter at the MAF sensor. Larger intakes manipulate the MAF reading and cause complications that need to be worked out on a per a car basis on the dyno in order to guarantee a safe quality tune.

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