Grams Performance Mazda Miata NA/NB 1.6/1.8L 550cc Fuel Injectors (Set of 4) (grpG2-0550-1001)

This is the Grams Performance Mazda Miata NA/NB 1.6/1.8L 550cc Fuel Injectors (Set of 4). Part grpG2-0550-1001. Larger fuel injectors supply the extra fuel needed for more power or ethanol blends.

Grams Performance is proud to offer the most innovative high-performance fuel injectors for today's performance vehicles. Premium materials, advanced manufacturing techniques and stringent quality control procedures mak Gram Performance the leader in high-performance fuel injectors.

An engines's fuel injectors perform a vital role in the accurate metering and atomization of fuel. Grams Performance accomplishes this with its high-impedance Bosch Motorsports EV14 fuel injectors that are modified for high-performance use. Each injector is individually balanced, flow tested and dynamically matched for characterization within one percent of each other. To ensure leak-free operation and optimal performance, each injector is then pressure tested up to 220 psi. The results are unmatched cylinder-to-cylinder consistency, even at low pulse width's, as well as optimal idle quality, response and performance. Grams Performance Fuel Injectors' ultra-fast and precise solenoids feature a linear response curve across a wide range of operating conditions and can accurately meter fuel even at the highest pressures and shortest pulse widths.

The EV14 injector's superior ball/pintle valves combine with Grams Performance's precision-modified nozzles allow for consistent performance up to 118 psi, making them suitable for a wide range of applications, yet without exhibiting any of the high-pressure problems often associated with other injectors. The optimized spray pattern aso helps improve mixture preparation as well as atomization.

Grams Performance injectors are cold-cut with diamond grinders in less than three seconds for high performance with "pre-seating". Abrasive cutting creates heat, which leads to poor spray patterns and the need for competitors to pre-seat their injectors to reduce distortion. Each injector is also fitted with high-quality Viton O-rings that are resistant to extreme temperatures and harmful oils found in some fuels.

Features and benefits

• High-impedance design (no resistor box required)
• Cold-machined tips for high-precision operation
• Ultra-fast

Product details

• Part type: Fuel Injectors
• Brand: Grams Performance
• Size: 550cc
• Grams Performance part number: grpG2-0550-1001

Fitment

• Vehicle: Mazda Miata MX-5 (NA), Mazda Miata MX-5 (NB)
• Years and trims on file: 1999 Mazda Miata 10th Anniversary; 1990-1993 Mazda Miata Base; 1994-1997 Mazda Miata Base; 1999-2005 Mazda Miata Base; 1993 Mazda Miata LE; 2000-2005 Mazda Miata LS; 1994-1997 Mazda Miata M Edition; 2004-2005 Mazda Miata Mazdaspeed; 1991 Mazda Miata SE; 2000-2003 Mazda Miata SE; 2003 Mazda Miata Shinsen; 1997 Mazda Miata STO
• Application listing: Grams Performance Mazda Miata NA/NB 1.6/1.8L 550cc Fuel Injectors (Set of 4)
• Check the vehicle, model years, engine and trim above against your car before ordering. Not sure? Ask us and we will check it against your VIN.

Shipping & returns

• Orders are processed within 1–3 business days; standard delivery is 3–7 business days within the United States.
• Grams Performance parts are supplied through our distributor. We confirm availability and lead time with you after you order.
• We currently ship within the U.S. only. See our Shipping Policy.
• 30-day returns on unused parts in original packaging — see our Return Policy.

Installation at Team ANBD

Team ANBD is a performance shop in Andover, New Jersey. We can align or corner-balance the car, and prep track cars. Book an appointment or ask us about installation and fitment before you order.

California Proposition 65

WARNING: This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov.