Check compression first. There's no sense in putting out money where it's not needed. IF you compression checks out send your injectors out to KG Parts. They're cheaper and they do a very good job. They cleaned out my injectors which had almost completely stopped flowing on the secondaries and only managed to flow about half of what they were supposed to be on the primaries. They cleaned them out and are still running strong (have been for a few months now though they recommend me not using them anymore).
I've sent all my injectors to them for cleaning and what not and they always do a bang up job.
If however you'd like some freshly cleaned injectors I have 3 S4 NA's... you'd have to put in some resistors, but it'd be cheaper than shipping 4 of your out for cleaning either way.
|