How much does fuel injectors and installation cost?
 

I've been getting varying results. But I'm assuming it will be in ~$300 range. Any help is appreciated, thanks!

What kind of injectors? It's a simple install, so that shouldn't be too bad. The price on injectors will depend on the brand and size. Also, you may need a retune if the new injectors are larger.

Injectors will vary price wise, if they seem to cheap they probably are. Labor times are normally between 2-3hrs so price will fluctuate with shop rates.

The stock injectors that come with a Z. It looks like they are $160.00 for 6 online. So the install is fairly simple? I'll research a bit more about injectors.

You've got a lot of stuff to take off to get to them, but it's not too hard. It's a reasonable DIY for someone with some degree of mechanical aptitude.

Its an easy install. Save yourself some money and do it yourself. Might take a hour tops!.