I have an 04 with 183k and about a month ago my check engine started flashing and I found out my first cylinder was misfiring. I went ahead and changed the spark plugs and also got new coil packs. While changing the coil packs I noticed the connector on the first one looked like it was in need of replacing. A day or two after replacing the coil packs it was misfiring again pretty bad. I went a head and ordered new connectors for all four but I was thinking of also replacing my fuel injectors to be safe and since they probably haven’t been replaced even before I bought the car.
Any advice on where I can get good aftermarket injectors?

 

Have you done a valve adjustment?

Fun fact, we use the same injectors as in the 1st gen Hayabusa.

 

No they are not the same.
They have the same physical dimensions and impedance, but a different flow rate.

 

Aren't TSX injectors of the same generation/year compatible?