440cc Injectors for NA/NB Miata

My '94 Miata's original injectors were tired, so swapping to these 440cc matched sets was a straightforward upgrade. The fuel trim settled perfectly with my ECU, and the idle is smoother than it's been in years.

Dropped these into my '99 Miata and the idle smoothed out immediately—no more hunting like with the old ones. They fit the stock rail without any modification, which saved me a headache. Car feels noticeably stronger through the mid-range.

The matched set means all four flowed the same out of the box, which saved me the headache of tuning around uneven idle. Install was straightforward, and the car’s been running clean on the stock ECU with a piggyback for a week now.