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Air and Fuel› Fuel Injection Systems and Components - Electronic
Weapon R
Weapon R 90+ Subaru (1.8-2.5L) / 86-05 Nissan (1.5-2.0L) / 86-05 Mazda (1.6-3.0L) Fuel Rail Adapter
SKU: W003 958-112-103
Easy — 1–2 hours
Overview
Key features include its direct bolt-on replacement for the OEM regulator port on compatible fuel rails and its ability to enable fine-tuned fuel pressure adjustment. It is ideal for high-performance and forced induction fuel system upgrades.
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Part #: 958-112-103
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Weapon R |
| Part Number | W003 958-112-103 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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