Intake

4 THROTTLE SYSTEM

Application	Engine code	Size	Part number	MSRP	Note
[R]PS13	SR20DE	ø45	193044	DISCONTINUED
P10

EJ20# / EJ25#用　4 THROTTLE SYSTEM

	* Image below is of a polished version for illustration purpose only.
* The throttle position sensor is not included.

Amazing Response from Quad Throttle Bodies, Larger Plenum Chamber for More Power!!

In order to build the best EJ engine, the Tomei R&D engineers focused on a highly responsive and powerful setup that still maintained big torque figures as well. For this objective to become a reality, countless data acquisition and numerous testing was performed on the engine dynamometer. As a result, the response was like having the throttle body directly connected to the right foot, at a non-hesitant linear reaction. With the output numbers at 500 HP and 500 ft-lbs of torque, the hard work put into this setup speaks for itself. This product is a must have for EJ enthusiasts who desire to have an advantage over the rest either on the streets or at the track.

Plenum Chamber Features

Throttle Body Features

Other Features

* Especially designed larger capacity for power and response.* Very thin light weight casting and made in Japan!* There is added rib support internally for high boost applications.* Superb design emphasis on equal air intake distribution.

Intake Port
Bore φ66.5mm
Outer Diameter φ70mm

* The advantage of running the larger φ48mm multi-throttle bodies is increased response and power from the increased air supply with the larger intake plenum chamber.* The funnels are made from light weight aluminium for minimal air resistance.* The bolts for the throttles are designed to accomodate either size head gasket you decide to use since the boxer engines length will change in size depending on your chosen head gasket thickness.

Throttle Body
* Fuel Pressure Regulator is not included in the kit.

Shown with the fuel rail fitted

Fits the stock top feed injectors.
(Can take larger injectors.)

You can retain the stock throttle position sensor

You can retain the stock fuel pressure regulator.

APPLICATION	SIZE	PART NO.	MSRP (USD)	NOTES
EJ20# EJ25#	φ48	193046	DISCONTINUED	Inlet Size　 Inside Diameter φ66.5mm Outside Diameter φ70.0mm