CARB Executive Order · Tuner / ECU

EO D-849-1

Z1 Motorsports · Z1 Engine Calibration for VR30DDTT

Executed: July 2023
Rows shown: 3
PDF pages: 3

Vehicles and part numbers in Exhibit A

Rows below are copied from the EO's vehicle table (Exhibit A). Listed in CARB EO D-849-1; final determination by CARB / Smog Check station.

2016–2023 Infiniti Q50 · 3.0L turbocharged

21497

2017–2022 Infiniti Q60 · 3.0L turbocharged

21497

2023 Nissan Z · 3.0L turbocharged

21497

Compare other brands for these vehicles

Infiniti Q50 Infiniti Q60

What the EO says about the part

The Z1 Engine Calibration for VR30DDTT consists of electronic control unit (ECU) calibrations with three selectable levels: 93 Octane High Boost, 91 Octane High Boost, and 93 / 91 Octane Low Boost. An OBD II connector is supplied that will be used to reprogram the ECU via iOS or Android application. The ECU calibrations cannot be modified by the end user.

Quoted from EO D-849-1. The EO exempts the part from California Vehicle Code Section 27156 only for the vehicles it lists.

More EOs from Z1 Motorsports

NextD-849-2Cold Air Intake

All 5 Z1 Motorsports EOs we read All vehicles with an EO-listed tuner / ecu

Source: CARB Executive Order D-849-1 (PDF), retrieved November 11, 2026. EOs can be amended, superseded or revoked; CARB's copy is the authority. Independent reference, not affiliated with CARB.