Description
PLEASE READ ENTIRE DISCRIPTION. ALMOST ALL POTENTIAL QUESTIONS CAN BE ANSWERED SIMPLY BY READING THIS ENTIRE PAGE.
- Price: $300 per set (includes data for one ECU type)
- Additional ECU formats: $35 each
(minimum of 4 injectors of the same size required for testing) - Turnaround Time: Typically 3–5 business days
- For top-feed, high-impedance port injectors only.
Real Data. Real Results.
Your tune is only as good as your data. Guessing on injector flow rates and offsets can cost you hours on the dyno and plenty of frustration. At MRP Fuel Injection, we don’t deal in guesswork. We provide the most accurate and reliable injector data, resulting is better fueling.
Every set is tested in-house on one of our flow benches, using the same process that verifies every MRP injector we sell.
When accuracy matters, don’t trust factory assumptions — trust the numbers.
Level Up Your Tuning Precision
Good tuners know the difference between “close enough” and dead-on.
With precision injector data for the exact injectors in yours or your customer’s setup, you can:
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Dial in idle fueling with zero guesswork
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Nail transient fueling and VE tables the first time
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Spend your dyno time perfecting power, not chasing fueling errors
Whether you’re tuning on Holley, HP Tuners, Haltech, FuelTech, or most any other OEM or aftermarket ECU, MRP’s data helps you build a better, smoother, more efficient tune.
What’s Included
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Flow-bench testing of every injector in your set under controlled conditions
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Detailed injector characterization including flow rate, offset/deadtime, and short-pulse data
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Matched data sheets in one ECU format of your choice (additional ECU formats available at extra cost)
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Complete test report showing per-injector flow variance and operating conditions
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Expert verification by the same technicians who service and match every set of MRP injectors
Data Formats Provided
Injector data is available for the following nine ECU formats:
GM, Ford, Dodge, Honda, Nissan, Mitsubishi, Subaru, Bosch, and Universal/Aftermarket ECU.
Each service includes data for one ECU type.
Need more than one? Add additional ECU formats at $35 each.
How It Works
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Purchase this service and select your primary ECU format.
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If you’d like additional ECU formats, add them to your cart at $35 each.
- Fill out the REQUIRED injector form and include with your shipment.
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Ship your clean injectors (minimum of 4 of the same size) to the below address.
MRP Fuel Injection
2864 County Road 4307
Greenville Texas, 75401 -
We’ll complete full testing and data generation in 3–5 business days.
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Your injector data and flow sheet report will be emailed directly — ready to load into your ECU or tuning software.
Important Notes
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Injectors must be clean and in working condition prior to testing. If the injectors being sent in are dirty, you will need to also purchase an Injector cleaning service which can be found here —> https://www.mistrustracing.com/product/full-service-rebuild/
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If injectors fail the ohm or leak test, we’ll contact you before proceeding.
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Turnaround time begins once injectors arrive at our facility.
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Questions? Email us at MRPfiSales@gmail.com
Why Choose MRP
At MRP Fuel Injection, precision isn’t optional — it’s our standard.
We’ve built our reputation on accurate testing, honest results, and customer service that’s as strong as the injectors we offer.
When Quality is Required, MRP Fuel Injection.



