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Air and Fuel› Fuel Injection Systems and Components - Electronic
FAST
LSXr Billet Fuel Rail Kit - LS1/LS6
SKU: F003 146032-KIT
Overview
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Part #: 146032-KIT
FAST LSX/LSXR
This Billet Fuel Rail kit for LS1 and LS6 engines includes billet fuel rails and mounting brackets designed to adapt an LS1/6 fuel injector to our 146302B 102mm intake manifold.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Engine hesitation during hard acceleration
- Poor fuel economy and performance loss
- Inconsistent idle or stalling after warm-up
- Lean air-fuel mixture under load
Relevant Conversations
- LS1 fuel rail upgrade kit best brand
- FAST 146032-KIT fuel rail review
- LS6 fuel rail installation instructions
- How to improve fuel delivery on LS1
- P0191 code after fuel rail install
- Billet fuel rail vs stock LS1
- Fuel rail replacement for LS engine
- FAST 102mm intake manifold fuel rail
- LS1 rough idle after fuel system upgrade
- Best fuel rails for 400+ hp LS engine
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 | FAST |
| Part Number | F003 146032-KIT |
About MOTORMIA
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Returns & Fitment
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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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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