# CSF 1/8in NPT Adaptor Plugs for CSF B58/S58 Manifolds - Set Of 6

The CSF #8403 Nitrous Express Jet Fitting Adaptor Plug Kit comes with 6 plugs (one for each runner). If you are not running port injection and wish to run multiple forms of other injection systems these plugs can also be used in place of the primary fuel rail as well. If you are not running port injection and wish to run multiple forms of other injection systems these plugs can also be used in place of the primary fuel rail as well.

-   Internally threading is 5/16-24 for Nitrous Express Plate Jet Fittings (NX PN: 16149) or VXL Nozzle (NX PN: 80019)
-   Fits all CSF B58 and S58 Manifold Injector Bungs
-   Includes (qty. 6) adapter plugs and O-Rings
-   Anodized Black Finish

## Details

- **Price:** 130.59 CAD
- **Vendor:** CSF
- **Type:** Intercoolers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 130.59 CAD | In stock |

## Images

- Photo - Primary
- Photo - Close Up
- Photo - out of package
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/csf-1-8in-npt-adaptor-plugs-for-csf-b58-s58-manifolds-set-of-6)
> Updated: 2026-08-23