VAC - 70mm CNC Big Bore Throttle Body, M50 family engines

Purchase VAC - 70mm CNC Big Bore Throttle Body, M50 family engines

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Our Big Bore throttle body is designed to increase performance on your hard tuned motor.

When looking to extract maximum horsepower from a highly efficient engine, the entire intake track must be taken into consideration. If you have a large bore intake, headers, and even cams- then you know how powerful the M5X cam be with the proper bolt-ons. This leaves only so many areas as the bottle neck.
Our 70mm CNC direct replacement throttle body is excellent for the tracked, raced, or extreme street M50, M52, S50us or S52 powered vehicle, looking to unobstruct all the horsepower said engine is capable of producing.
On the M5x / S5x US series engine, the engine has only one throttle to ingest large amounts of air. This isn't as much of a bottle neck as people think: When you want maximum engine output, this opening must be properly enlarged so the engine is not 'choked off'. Our 70mm throttle body does just that.

The VAC Billet Big Bore Throttle Body is set to use OBDI or OBDII.
Depending on your other supporting modifications and ECU tune, software upgrades may or may-not be required.

We use this same TB on our 310 WHP S52us endurance race engine!