High-Performance Fuel Injectors for the Nissan RB25 Neo

Upgrade your Nissan RB25 Neo engine with the Excess Injectors 1500cc Fuel Injectors, designed for race teams and performance enthusiasts who demand precision, reliability and efficiency. These injectors are flow-matched within 1% and dead time-matched within 2% for optimal fuel delivery and smooth performance at high RPMs.

Made to J1832 industry standards, these injectors are tested for pressure, temperature and voltage consistency. Whether you're fine-tuning for peak power or pushing the limits on the track, these injectors have the exact match data for seamless tuning and engine response.

Features of the RB25 Neo 1500cc Injectors

• Direct Fit for RB25 Neo - No modifications required
• 1500cc Flow Rate - For high-performance applications
• Exact Match Technology - Over 6,500 flow points tested per injector
• Wiring Adaptors Included - No cutting required; pigtails or plugs available upon request
• J1832-Standard Testing - Electronically controlled for precise pressure, temperature and voltage consistency
• Lifetime Guarantee - Replacement available for manufacture issues

Excess Injectors are built with tight tolerances, so you get the same performance every time. Each set is tested extensively, recording over 265,000 measurements for flow, pressure and voltage to deliver injectors that perform flawlessly under demanding conditions.

The data for your specific injector set is stored on a secure cloud server, so you can access performance metrics whenever you need to. This eliminates guesswork and simplifies ECU tuning, so you can achieve peak performance without trial and error.

Installation & Compatibility

• Vehicle Fitment: Nissan RB25 Neo engines
• Injector Length (o-ring to o-ring): 55mm (3/4 length)
• Top O-Ring Diameter: 14mm
• Electrical Resistance: High Ohm
• CC Rating: 1500cc
• Comes with: 6 wiring adaptors and 6 lower extensions

Installation is easy as these injectors will bolt straight into your RB25 Neo build. Whether you're boosting power for competitive motorsport or enhancing your street-driven setup, these injectors have the reliability and performance to maximise your engine.

Why Excess?

 See for yourself

Tight Testing Controls

All Excess Injectors are tested on our custom built test bench to J1832 standards.

• Pressure is electronically controlled at 3 bar
• Temperature is controlled at 21°C
• Votage is controlled at 14V

Because the testing parameters are so tightly controlled we get the same results everytime we test them.

Exact Match Data

We don't just dynamically flow test injectors we also measure the dead time of each injector. Every set is:

• Dynamically flow matched within 1%
• Deadtime matched within 2%

How many points are tested?

• over 6,500 flow points are tested and recorded on every injector.
• over 265,000 measurements for flow, pressure, voltage etc are recorded for every injector
• tuning data specific to your set is available for download to make an easy tune

All of these results are stored on our cloud server, you can log in to view the data specific to your set at any time.

Lifetime Guarantee

If an injector has an issue not related to contamination or damage from external forces we simply replace the injector for you. It's that easy.

We know exactly how your injector set should flow and what the deadtimes are because we store that information on the cloud server. We just replace the injector with another one that matches your injector set exactly.

• Brand:   Excess
• CC Rating:   1500cc
• Ohms (Resistance):   High
• Length (o-ring to o-ring):   55mm - 3/4 Length
• Top O-Ring Diameter:   14mm
• Comes with:   6 wiring adaptors, 6 lower extensions