Injector Dynamics 1300.11.02.60.11.4 ID1300-XDS Injectors for 1990-2005 Miata

Vehicle Fitment

• 1990-1997 Mazda Miata NA (B6 1.6L DOHC Inline-4, naturally aspirated, RWD)
• 1999-2005 Mazda Miata NB (BP 1.8L DOHC Inline-4, naturally aspirated, RWD)
• 2004-2005 Mazdaspeed Miata NB (BP 1.8L Turbocharged Inline-4, RWD)

Fitment Notes

• Configured for the NA and NB Miata fuel rail - 60mm body length with 11mm blue upper adapter and -204 lower cushion fitment.
• The lower O-ring retainer must be removed from the intake manifold ports prior to installation for correct seating and sealing.
• Includes USCAR to Denso PnP wiring adapter for plug-and-play installation on the factory Miata injector harness.
• Due to the high flow rate relative to the Miata's small-displacement engine, professional ECU tuning with Injector Dynamics characterization data is strongly recommended for reliable idle and low-speed drivability.
• All 4 injectors are flow-matched in sets; contact Injector Dynamics support for single-injector replacement requests.
• Compatible with all known fuels including gasoline, E85, and all ethanol and methanol blends.

Features

• Nominal flow rate of 1340cc/min at 3.0 Bar (43.5 psi) - provides ample capacity for high-power turbocharged or supercharged Miata builds on E85 or gasoline.
• Designed in partnership with Bosch Motorsport for motorsport-grade precision atomization, repeatability, and long-term reliability.
• All stainless steel internals provide superior resistance to ethanol and methanol corrosion for sustained alternative fuel use.
• Minimum fuel mass design preserves clean idle behavior and smooth part-throttle driveability even when running on pump gasoline.
• Flow-matched set of 4 ensures consistent cylinder-to-cylinder fuel delivery for accurate and stable ECU calibration.
• Broad operating pressure range allows tuners to adjust effective flow rate via fuel pressure - ideal for varied power levels and fuel types.
• USCAR connector with Denso PnP adapter included for splice-free factory harness compatibility on NA and NB Miata platforms.

Specifications

• Injector Model: ID1300-XDS
• Nominal Flow Rate: 1340cc/min @ 3.0 Bar (43.5 psi), Iso Octane, 52°C
• Maximum Differential Fuel Pressure: 6.0 Bar (87.0 psi)
• O-Ring to O-Ring Length: 60mm
• Upper Adapter: 11mm Blue (Mazda Miata NA/NB specific)
• Lower Fitment: -204 Lower Cushion (remove factory lower O-ring retainer before install)
• Electrical Connector: USCAR with USCAR-to-Denso PnP adapter included
• Impedance: Saturated / High Impedance
• Fuel Compatibility: All known fuels - gasoline, E85, methanol blends
• Quantity: Set of 4
• Engine Base: Mazda B6 1.6L / BP 1.8L

Included Components

• 4x ID1300-XDS Fuel Injectors (flow-matched set)
• 4x 11mm Blue Upper Adapter Tops
• 4x -204 Lower Cushions
• 4x USCAR-to-Denso PnP Wiring Adapters
• 1x Injector Dynamics characterization data (for ECU tuning)

Product Description

The Injector Dynamics 1300.11.02.60.11.4 is a set of four ID1300-XDS high-flow fuel injectors configured specifically for the 1990-2005 Mazda Miata NA and NB platforms, covering the naturally aspirated B6 1.6L, BP 1.8L, and the turbocharged 2004-2005 Mazdaspeed 1.8L engine. Developed in partnership with Bosch Motorsport, the ID1300-XDS delivers 1340cc/min at 3 bar with all stainless steel internals for full compatibility with E85, ethanol blends, and pump gasoline. The 60mm body length with 11mm blue upper adapter and -204 lower cushion matches the NA/NB Miata fuel rail directly - the factory lower O-ring retainer must be removed from the manifold ports prior to installation for proper sealing.

The included USCAR-to-Denso PnP wiring adapters provide a splice-free connection to the factory Miata injector harness, eliminating the need for re-pinning or cutting wires. All four injectors are flow-matched at the factory for consistent cylinder-to-cylinder fuel delivery. Given the high flow rate relative to the Miata's displacement, professional ECU tuning using Injector Dynamics characterization data is strongly recommended to achieve reliable idle quality and smooth low-speed drivability - particularly important on NA builds where the injectors will operate at low duty cycles under normal driving conditions.