There are certain differences between the 2JZ-GTE engines destined for the Japanese Domestic Market and the North-American and European Market.

	J-Spec	Export-Spec	Konsequenzen
Engine Peripherals
Control	less aggressive intake camshaft	more aggressive intake camshaft	Less aggressive camshafts allow the engine to respond faster.
Duration	224°	233°
Valve Lift	7.88mm	8.25mm
Injectors	High Impedance and weaker fuel pump	Low Impedance with series resistor	While increasing boost the smaller injectors cause the engine to run lean earlier. Many third-party ECUs won't work with high-impedance injectors.
Flow Rate	440cm³	550cm³
Air-Flow Sensor	Manifold Absolute Pressure	Manifold Air Flow
Exhaust Gas Recirculation	Non	EGR available	An EGR causes lower combustion temperatures and soot deposition in the intake manifold. Without an EGR problems at smog-testing may occur caused by too high NOx-Emissions.
Turbo System
Turbocharger	CT12b	CT12b	The ceramic turbine is more fragile. It can withstand boost up to 1.2 bar, while the steel turbine can stand up to 1.6 bar. On the other hand ceramic turbines are more responisve.
Turbine Diameter	Inlet/Outlet 60/48mm	Inlet/Outlet 52/44mm
Turbine Material	Ceramic	Steel
Compressor Diameter	Inlet/Outlet 62/39mm	Inlet/Outlet 58/39mm
Wastegate	weaker		Removing the first catalyzer in the downpipe can cause boost spikes. The wastegate used in the J-Spec needs resistance in the downpipe, e.g. a sports catalyzer or a restrictor ring.
Bypass Valve	None	Available	The Bypass Valve prespools the second turbo.
Electronics
Traction Control (TRC)	mechanical	Additional intervention in ABS-System via TRAC-Pump	The J-Spec Traction Control does only react on straight roads.
Speed Limiter	Fuel Cut at 180kph (112mph)	Closing the TRAC-Butterfly Valve at 250kph (155mph)	On export vehicles pulling the TRAC-Fuse is enough to delimit the vehicle (don't do this on Automatic vehicles, it will cause gearbox failures). J-Spec vehicles need a Speed Limit Defender (e.g. HKS or Trust/Greddy).

View into J-Spec Engine Room
View into Export Engine Room
Description:
1: Exhaust Gas Recirculation
2: TRAC-Pump, builds up pressure in ABS-System
3: Series Resistor for Injectors
4: Writing on throttle body (Export: "TRACTION CONTROL" J-Spec: "ETCS" = "Electronic Throttle Control System")
5: Cruise Control Control Unit (can be available in J-Spec vehicles)

Deutsche Version