After spraying some starter fluid spray I saw an little spark combustion inside the injectors.my question is can I damage anything inside?

Does the brand actually make a difference?If so whats recommended?

I bought a turbo back exhaust from Marker1989 and he was very reasonable with his pricing. He communicated great and was very patient with me to pay for the exhaust. Overall outstanding experience with this seller, would recommend to anyone. Thank you!   -Dave

Seems I have misplaced a part, any idea what it's called and where I can get ahold of it? http://img18.imageshack.us/img18/2130/w3sl.jpg Thanks in advance.