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Enthusiasts looking to improve their Challenger's performance
Compatible Vehicles
2022 Dodge Challenger R/T(5.7L HEMI V8)
2022 Dodge Challenger R/T Scat Pack(6.4L HEMI V8)
Fits the 5.7L HEMI R/T and 6.4L HEMI Scat Pack. Not the V6 SXT or supercharged Hellcat.
Holley EFI
Hi-Flow Fuel Rails
MPN: 534-284 · SKU: CH23426
View on Holley EFI website5.0across 3 reviewson 2 retailers
Price unavailable
Limited warranty
Enthusiasts looking to improve their Challenger's performance
Compatible Vehicles
2022 Dodge Challenger R/T(5.7L HEMI V8)
2022 Dodge Challenger R/T Scat Pack(6.4L HEMI V8)
Fits the 5.7L HEMI R/T and 6.4L HEMI Scat Pack. Not the V6 SXT or supercharged Hellcat.
Available variants
This product comes in 3 variants. Pick the one that matches your engine or trim.
What Does This Do?
Holley EFI Hi-Flow Fuel Rails are parts that help deliver fuel more efficiently to your engine, ensuring it gets the right amount of fuel for optimal performance. They are designed for high-performance engines and are built to last with a durable finish. Who it's for: This product is ideal for car modders looking to enhance the fuel delivery system of their 2022 Dodge Challenger, especially those aiming for a performance-focused build. Trade-offs: Installing these fuel rails may lead to a slightly more complex setup, but they provide better fuel flow, which can improve engine performance.
Why Install This?
Benefits
- Moderate install — doable in a home garage with some mechanical experience
Where does this go on the car?
Hi-Flow Fuel Rails changes 1 primary stock component (highlighted red). Included or supporting pieces are listed below.
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Red = primary stock component changed
Primary install target (1)
- Fuel Rails
Specifications
4 attributes| Engine Type | Naturally aspirated 5.7L Hemi1 |
| Fuel Passage Diameter | 5/8 inch2 |
| Gauge Ports | 1/8 NPT2 |
| Finish | Black anodized2 |
Sources: 1Fasthemis | 2AmericanMuscle
Price Comparison
Compare prices across 3 retailers — every link opens the real product page
Best price
$1.00
at Amazon
Frequently Asked Questions
Will the Hi-Flow Fuel Rails fit my car?
Verified fitment includes 2022 Dodge Challenger. The full compatibility list is shown in the Compatible Vehicles section above; if your specific year/trim is not listed, double-check with the retailer before purchase.
Based on product data
How hard is it to install the Hi-Flow Fuel Rails?
This is rated as an intermediate install. Plan for a half-day with hand tools and basic mechanical experience.
Based on product data
Does the Hi-Flow Fuel Rails come with a warranty?
Yes — 90-day warranty against defects on materials and workmanship per the listing on americanmuscle. Refer to the retailer or manufacturer for the full terms before installation.
Based on product data
Fuel Rails buyer's guide
How to pick fuel rails for your Challenger — what matters, what doesn't, and what to avoid.
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