Toyota 4Runner Throttle Body Spacers

Not every 4Runner owner wants to commit to an ECU tune or a cold air intake, and a throttle body spacer sits between those options — it improves air mixing at the intake manifold entrance, costs less than a full intake system, and bolts in without any sensor or electrical modifications. That is the lane that Toyota 4Runner Throttle Body Spacers occupy, and it is a meaningful one for owners who want a noticeable improvement without a big commitment.

 

Phenolic spacers also add a thermal barrier between the hot throttle body and the intake manifold, which reduces the heat soak that warms intake air charge on the 4Runner's 4.0L after extended use. The improvement is most noticeable at partial throttle in the low-to-mid range where the 4Runner does most of its daily work — highway merges, low-speed trail sections, and the kind of load the engine sees every day.

 

The affordable first step in the 4Runner intake build is the right spacer from Toyota 4Runner Throttle Body Spacers. The full engine performance category is at Toyota 4Runner Engine Performance Parts, supercharger kit options for owners going further are at Toyota 4Runner Superchargers Kits, and tuner options are at Toyota 4Runner Tuners.