Fuel Injector Clinic 525cc Fuel Injector Set - High Z (is167-0525h) - 1997-2006 Volkswagen / Audi 4 Cylinder 53mm
Upgrade the fuel delivery on your performance Volkswagen or Audi four-cylinder with the Fuel Injector Clinic 525cc High-Z Fuel Injector Set. The is167-0525h includes four 525cc saturated, high-impedance ball-and-seat injectors in a 53mm configuration. Built for enthusiasts who need increased fuel capacity without giving up the response and drivability expected from a street-driven performance car, these injectors deliver excellent linearity, short pulse width repeatability, and consistent fuel control across the operating range.
Fuel Injector Clinic precisely flow matches each is167-0525h injector set to within 1%. Every injector is individually numbered, and a detailed flow sheet showing the results for each injector is included with the set. FIC flow tests and rates these injectors at 43.5 PSI, or 3 Bar, at 90 degrees F fuel temperature using CF-16B calibration fluid. Tight manufacturing tolerances and superior short pulse width control help make the injectors easier to tune while maintaining excellent drivability. PGTUSC4 solder-in pigtails are included, while optional PADPUtoJ4 plug-and-play adapters provide an installation option without cutting or soldering the factory injector wiring.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is167-0525h
- Flow Rate: 525cc/min
- Application: Volkswagen / Audi 4-cylinder
- Injector Height: 53mm
- Injector Type: Saturated / High Impedance / High-Z
- Injector Design: Ball and seat
- Quantity: Set of 4 injectors
- Flow Matching: Precisely flow matched to within 1%
- Test Pressure: 43.5 PSI / 3 Bar
- Test Fuel Temperature: 90 degrees F
- Calibration Fluid: CF-16B
- Injector Identification: Individually numbered
- Included Data: Detailed flow sheet with individual injector results
- Included Wiring: PGTUSC4 solder-in pigtails
- Optional Wiring: PADPUtoJ4 plug-and-play adapters
- Seals: Includes O-rings required for the listed factory application
- Warranty: Lifetime warranty against failure caused by defects in original manufacture
Features
- 525cc/min flow capacity for modified Volkswagen and Audi four-cylinder applications
- 53mm injector configuration
- Complete matched set of four injectors
- Saturated, high-impedance ball-and-seat injector design
- Injector sets precisely flow matched to within 1%
- Excellent linearity and short pulse width repeatability
- Superior short pulse width control supports accurate tuning and excellent drivability
- Tight manufacturing tolerances promote consistent injector performance
- Each injector is individually numbered
- Detailed flow sheet provides results for each injector in the set
- Flow tested and rated at 43.5 PSI, or 3 Bar, at 90 degrees F using CF-16B calibration fluid
- Includes PGTUSC4 solder-in pigtails
- Optional PADPUtoJ4 plug-and-play adapters eliminate the need to cut or solder the factory injector wiring
- Includes O-rings required for the listed factory application
- Uses brand-new injectors rather than remanufactured or core-program injectors
- Covered by Fuel Injector Clinic's lifetime warranty against defects in original manufacture
525cc Performance with Precise Flow Matching
Adding fuel capacity should not come at the expense of predictable injector behavior. Fuel Injector Clinic combines the 525cc/min flow capacity of the is167-0525h with precise flow matching, excellent linearity, and superior short pulse width control. Each injector set is matched to within 1%, helping provide consistent fuel delivery from idle and part-throttle operation through higher-load performance driving. The included individual injector flow results also give tuners valuable information when calibrating the fuel system.
Wiring Options
The is167-0525h requires an injector plug conversion. PGTUSC4 pigtails are included and can be soldered into the vehicle wiring harness to replace the existing injector plugs. For an installation without cutting or soldering the factory harness, optional PADPUtoJ4 plug-and-play adapters connect the injectors to the existing wiring. Fuel Injector Clinic uses brand-new, unused injectors for its performance applications rather than relying on remanufactured or core-program injectors.
Fitment
- 1997 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 1998 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 1999 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2000 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2001 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2002 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2003 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2004 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2005 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
- 2006 Volkswagen / Audi 4-cylinder applications requiring 53mm injectors
Fitment Note: This is the 53mm four-cylinder VW/Audi injector configuration. Verify that your specific application requires 53mm injectors before ordering. If the vehicle uses an aftermarket fuel rail or another non-standard fuel-system configuration, contact Beefcake Racing to confirm proper injector fitment.
FAQs
How are the Fuel Injector Clinic is167-0525h injectors matched?
Fuel Injector Clinic precisely flow matches each injector set to within 1%. Every injector is individually numbered, and a detailed flow sheet showing the results for each injector is included with the set.
Does the is167-0525h require an injector plug conversion?
Yes. The set includes PGTUSC4 solder-in pigtails for replacing the existing injector plugs. Optional PADPUtoJ4 plug-and-play adapters can be used instead when you want to connect the injectors without cutting or soldering the factory injector wiring.
Why Buy Fuel Injector Clinic Injectors From Beefcake Racing?
Beefcake Racing can help you select the correct Fuel Injector Clinic injectors and supporting fuel-system components for your Volkswagen or Audi performance build. If you have questions about the is167-0525h, injector sizing, the 53mm configuration, wiring adapters, or fuel-system compatibility, email sales@beefcakeracing.com or call 1-855-827-7223 for assistance.
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