MAZDA · L3TB021 ECU

MAZDA CX-7 L3TB021 tuning files

Tuning file coverage for the MAZDA CX-7 running the L3TB021 ECU. The matched variants sit between 238 and 260 HP from the factory. 6 distinct variants are catalogued here. Stage 1 and Stage 2 are the safe starting points for this platform. Each file is tied to the precise software on your car and checked before it goes out.

Available solutions

Solutions that apply to the L3TB021 on this vehicle platform. The exact set depends on the specific engine and software version.

Engine variants & ECU software

6 distinct variants for the MAZDA CX-7 on the L3TB021 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
2300 260HP
Generation
2007-2013
Matched gains engine
2.3T 260
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
260 HP
Stage 1 power
305 HP
Power increase
+45 HP (+17%)
Stock torque
380 Nm
Stage 1 torque
450 Nm
Torque increase
+70 Nm (+18%)
ECU SW
L33PEU000
ECU HW
L3TB021

Variant 2

ECU
Catalog engine
2300 260HP
Generation
2007-2013
Matched gains engine
2.3T 260
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
260 HP
Stage 1 power
305 HP
Power increase
+45 HP (+17%)
Stock torque
380 Nm
Stage 1 torque
450 Nm
Torque increase
+70 Nm (+18%)
ECU HW
L3TB021

Variant 3

ECU
Catalog engine
2300 260HP
Generation
2007-2013
Matched gains engine
2.3T 260
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
260 HP
Stage 1 power
305 HP
Power increase
+45 HP (+17%)
Stock torque
380 Nm
Stage 1 torque
450 Nm
Torque increase
+70 Nm (+18%)

Variant 4

ECU
Catalog engine
2300 238HP
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
238 HP
ECU SW
SW-L39MED000.HEX
ECU HW
L39M18

Variant 5

ECU
Catalog engine
2300 238HP
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
238 HP
ECU SW
L39MEC000
ECU HW
L3TB011

Variant 6

ECU
Catalog engine
2300 238HP
Controller brand
MITSUBISHI
ECU
L3TB021
Stock power
238 HP

Related vehicles

Other vehicles built on the L3TB021 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the MAZDA CX-7 on the L3TB021?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the L3TB021 ECU software on this model?

Yes — the MAZDA CX-7 on the L3TB021 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.

MAZDA CX-7 L3TB021 ECU Tuning Files | TuningBay