Defenitely a Doityourself project. I believe its $25 per injector and you will need the nozzleholders, reuse the old O-rings of possible.
The whole thing will take about 30-60 minutes.
Good Luck!
F.J.

__________________
F.J.
81 300 SD grey/palomino 168K miles
84 190E 2.3 black/grey 64K miles (wrecked)
85 190E 2.3 maroon/palomino 92K miles
88 300E desert red/palomino 204k miles
(made to look like a '94-95)
92 400E desert taupe/creme beige 120K miles
(converted to 94-95 E420 looks)