Right now I have headers, CAI, and pulleys. I'm thinking about a test pipe and an exhaust system. Should I get a dyno tune afterwards? Has anyone gotten good numbers with a tune? And how much do they usually run?

 

Once you have all of your mods installed have it dynoed.

That will tell you if you are running too lean.

 

You have been a forum member for also 2 years. Have you reviewed the pre and post tuning dynos?

 

I Havn't been on for a long time.

 

My original plan is to get the intake/exhaust mods and get a tune. Otherwise you're wasting money. I think the peak hp numbers vary from -3 ( ) to 20+. However, almost everyone makes 30ish HP and 30torque in the mid range area.
I'd suggest getting intake/exhaust and a plenum mod and then getting a reflash or UTEC + tune.