Overview
The AIRAID 520-505 is an anodized aluminum throttle body spacer for the 1999–2004 Nissan Frontier and the 2000–2004 Nissan Xterra. It mounts between the throttle body and intake and is designed to improve mid-range power and throttle response on these vehicles.
The PowerAid spacer has a Helix bore and billet aluminum construction. It is marked 50 State CARB approved and is made in the U.S.A.
Key features
- Billet aluminum body with anodized finish
- Helix bore for mid-range power
- Aims to improve low-end torque and fuel efficiency
- Bolt-on installation
- 50 State CARB approved
- Made in the U.S.A.
Before you install
A throttle body spacer sits between the throttle body and the intake, so the gasket seal at both faces matters. Before fitting it, clean the mating surfaces and look for nicks or warped areas that could let air leak past the seal. Torque the bolts evenly so the spacer seats flat without pinching the gasket.
Once it is on, start the engine and listen for hissing or a rough idle, which can signal a vacuum leak at the joint. Many vehicles tolerate the change without any adjustment, but the throttle position sensor and idle control respond to airflow, so watch for warning lights during the first drive. Inspect the spacer and gasket at oil changes and after any throttle body service.
Specifications
| Brand | AIRAID |
|---|---|
| Part number | 520-505 |
| UPC | 642046525057 |
| Product type | Throttle body spacer (PowerAid series) |
| Base material | Aluminum, billet |
| Finish | Anodized |
| Bore | Helix |
| Emissions approval | 50 State CARB approved |
| Country of manufacture | U.S.A. |
Vehicle fitment
It fits the 1999–2004 Nissan Frontier in SC, SE, SVE and XE trims, and the 2000–2004 Nissan Xterra in SE and XE trims.
Frontier models after 2004 and Xterra models outside 2000–2004 are not covered by this list. Confirm your vehicle’s year, model and trim before ordering.
What’s included
Check the package for gaskets and bolts before installing.
