- We’re a specialty low volume fuel injector service shop, offering a single, premium-tier service.
- We prioritize personal service, communication and results over order volume.
- While other shops rely on outdated methods dating back to 1996, we have redefined and modernized fuel injector service.
Premium Fuel Injector Service
Quick Processing – Your Order Won’t Wait!
- The turn around time for orders of 2-8 Piezo, GDI and Port injectors is typically 3 to 4 business days.
- The turn around time for orders of 2-4 E-TEC injectors is typically 3-5 business days.
- Higher quantity orders and multiple orders arriving same day may take additional time.
- U.S. Service area only at this time.
Full Range Of Vehicle Fuel Injector Service
We provide fuel injector service for all major brands of marine, snowmobile, off-road, motorcycle, and automotive vehicles.
See What Our Clients Are Saying

Proper Fuel Injector Service
“Can you test GDI/Piezo injectors on a port injector machine?” The short answer is no, and here’s why that’s so important.
It’s not just our opinion; it’s the official stance of both Bosch and Siemens, the companies that make these injectors. Testing a high-pressure GDI/Piezo injector on a low-pressure port machine gives you completely irrelevant results. We’re committed to integrity and would never misrepresent what a machine can do just to make a sale.
That’s why we’ve invested in fully outfitting our shop with the latest Carbon Zapp test benches. We offer both of the the latest Carbon Zapp Port Injector Test Benches and GDI/Piezo Direct Injector Test Benches. This ensures we have the correct, purpose-built equipment for every single injector that comes through our doors.
Matching the Machine to the Injector is not something most shops can do properly. When you trust us with your injectors, you can be confident that you’re getting the right service every time.

Have a Question About Our Services?
Redline Injectors is dedicated to delivering precision-engineered fuel injector service. We offer a single, premium service tier that covers all Port, GDI, and Piezo fuel injectors. From Ski-Doo & Evinrude to Nissan & BMW and Ferrari injector service, we have the expertise to get the job done right.
Every proprietary tool and every cleaning process step is specifically engineered to service injectors efficiently and enhance results, we are the perfect choice for those who value precision and attention to detail in their fuel injector servicing needs.

Fuel Injector Service Exclusions
- We do not service Diesel Injectors
- We do not service CPI/SCPI Spider injectors
- We do not service FICHT injectors
- We do not service Flux Capacitors
- See our Injector Type Page for visual references
Fuel Injector Insights
Port injectors and GDI (Gasoline Direct Injection) injectors are two different types of fuel injectors used in modern internal combustion engines. The main differences between them lie in the way they deliver fuel to the engine, their position relative to the intake system, and their function in the combustion process.
How are Piezoelectric and GDI Injectors different?
Piezoelectric injectors and GDI injectors (Gasoline Direct Injection injectors) are both types of fuel injectors used in modern internal combustion engines, but they differ significantly in terms of technology, performance, and functionality.
Can you test GDI/Piezo injectors on a Port injection machine?
Testing a Gasoline Direct Injection (GDI) injector on a machine designed for Port Fuel Injection (PFI) injectors is not recommended due to significant differences in their operating principles and requirements.
Get Premium Fuel Injector Service Today
We take pride in providing a premium service that goes above and beyond. As the market leader in premium injector services, we offer expert Fuel Injector service with unmatched precision and quality. Serving US only, we ensure a rapid service turnaround so you can motor with confidence, knowing your injectors and rails are in the hands of the most advanced shop in the business.