VTT Billet N54/N55 Vacuum/Boost Adapter
Free US shipping on orders over $250
Make sure this fits your car
Fits: 335i / 335is / 435i (N55) E9X/F3X, 135i / 335i / 535i (N54) E82/E90/E60
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
VTT Billet BMW N54/N55 Vacuum and Boost Adapter
Add accurate manifold vacuum and boost-reference ports without drilling the intake manifold. The VTT adapter installs inline at the throttle-body connection and provides two 1/8-inch NPT ports for BOV, port-injection, gauge, controller, or data-logging references.
True Manifold Reference
The adapter provides a post-throttle signal, making it suitable for devices that require both vacuum and boost rather than charge-pipe pressure alone. Its inline design retains the intended position of adjacent sensors instead of spacing them away from the original measurement point.
Construction
- CNC-machined 6061-T6 aluminum adapter
- Black anodized finish
- Two 1/8-inch NPT accessory ports
- Steel plugs and blue-anodized barb fittings in applicable kits
Kit Choices
- Adapter only: Bare adapter for a custom configuration
- Basic kit: Adapter, one straight or 90-degree 1/4-inch barb, one plug, one vacuum cap, and one zip tie
- Dual-barb kit: Adapter, two barbs, one vacuum cap, and one zip tie
Fitment
Designed for BMW N54 applications and selected N55 configurations. N55 fitment is limited; confirm the throttle-body connection and surrounding clearance before ordering.
Installation
Use thread sealant appropriate for 1/8-inch NPT fittings, keep sealant out of the passages, cap every unused port, and leak-test the complete intake and vacuum system after installation.
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| BMW | 335i / 335is / 435i (N55) | E9X/F3X | 2011–2016 | |
| BMW | 135i / 335i / 535i (N54) | E82/E90/E60 | 2007–2013 |
Not sure? Call or text 945-954-1142 with your car or VIN.
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
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