Performance Injectors (2003-2007 5.9L Cummins)
Performance Injectors (2003-2007 5.9L Cummins)
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Dynomite Diesel Performance Fuel Injectors – Multiple Over Sizes Available
Upgrade your fuel system with Dynomite Diesel Performance Injectors, engineered for Cummins owners who demand precise fueling, reliability, and scalable horsepower. These injectors are designed to support everything from mild performance upgrades and towing applications to full-blown competition builds.
Each injector set is built using high-quality components and calibrated for consistent fuel delivery, smooth idle characteristics, and dependable operation under load. Whether you’re chasing improved throttle response, increased horsepower, or maximum fuel volume for large turbo setups, Dynomite Diesel offers a proven solution.
Available Injector Sizes
Choose the injector size that best matches your build goals:
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15% Over – Mild upgrade, improved throttle response & towing performance
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30% Over – Street performance, quick spool, excellent drivability
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45% Over – Strong street/strip performance builds
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60% Over – Aggressive street performance with proper supporting mods
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100% Over – High-power builds requiring increased fuel volume
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150% Over – Competition-oriented setups
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200% Over – Race applications with upgraded turbo & fuel systems
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250% Over – Extreme fueling for dedicated performance builds
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300% Over – Full race applications only
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350% Over – Maximum output, competition use
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400% Over – No-compromise race fuel delivery (supporting mods required)
Key Features
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Precision-built performance fuel injectors
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Flow-matched for consistent fueling across all cylinders
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Designed to maintain smooth idle and clean fueling when properly tuned
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Supports a wide range of power levels and turbo combinations
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Ideal for street, towing, performance, and race applications
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Built for durability under high cylinder pressure and elevated EGTs
Important Notes
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Proper tuning is required for all over-stock injector sizes
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Larger injector sizes require supporting modifications (turbo, fuel system, transmission, and airflow upgrades)
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Injector size selection should match your intended use, not just peak horsepower goals
Fitment
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Available for multiple Cummins applications
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Select your injector size and engine configuration before checkout
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FAQ
How long does shipping take?
Most products ship in 3–7 days. Some will take longer. If a product needs more time, it will say so on its product page.
How do I know if a product fits my truck?
Each product page lists the year, make, and model it fits.
If you’re unsure, you can message us through our website, email, or Facebook, and we’ll confirm fitment for you.
Do you offer installation?
Yes. PSC Automotive & Diesel Repair installs everything we sell.
Call or message us to schedule an appointment.
What is your return policy?
- Returns accepted on new, unused items.
Some items are subject to a restocking fee, depending on the manufacturer.
Electrical parts, tuners, and custom-built items are non-returnable.
Full details are on our Refunds page.
What is your warranty policy?
Our warranty matches the manufacturer’s warranty.
If a part fails or has a defect, we will work with the manufacturer to get it replaced.
We do not warranty parts that were:
Installed incorrectly
Damaged by lack of maintenance
Removed or messed with after installation
Installed by another shop after we installed it
Full warranty details are on our Warranty page.
Will I get tracking information?
Yes. Tracking is emailed to you as soon as your order ships.
Check your spam folder if you don’t see it.
Do you offer customer support?
Yes! You can contact us anytime at:
Website chat
Email
Phone
Facebook or Instagram
We reply quickly during business hours.