Does anyone know where to get these?

They are the caps that go on the end of the injector where the 4 spray holes are. They are usually tan and they hold the small o-ring on.

http://www.courtesyparts.com/onlinestore/graphics/00000002/16600-RR543.jpg

It's that thing here ^

?

eh?

you very carefully have to try and get them off your old red tops.

i bought mine and sent them out to rc engineering to get cleaned.
mine also needed pintle caps. I sent my old injectors along and they swapped them for me. worked great.

you probably can buy them new,but i don't know where.

good luck;)

oh yeah, they break easily--therefore i will not be held responsible for your broken parts!!!

I sent them to RC Engineering. They cleaned and balanced them but they sent them back with a note saying that I needed to get the o-rings and pintle caps from the manufacturer.

Jason, you should send a http://www.sr20deforum.com/images/sendpm.gif to Brian at Courtesy. :D