Hey i am new to this But if i get headers do i need to get a tune i mean i know it will be best but if i get the headers and not get a tune does it hurt my car in the long haul because i want headers but i want to keep the powertrain warranty

Tuning will get the most out of them long run I couldn't tell u I'm in the same boat right now

You'll probably get a check engine light with headers without a tune. I had a predator tune before I got headers and had to have Diablo sport send me a modified one to clear the code. And a tune makes a good power difference.
I had my dod turned off and after adjusting the fuel trims I got better mileage also. Worth a tune in my opinion.

You will get a check engine light. I also felt that without the tune the car was running rich. The tune will also shut down the AFM, that's good. It is the best thing I have done to the car.

In my opinion, if you install the headers, get the tune. I waited but wish this was an earlier mod. Sounds so much better with tune, and know it was done right (thanks Extreme Performance). They retuned mine and now it has the power and torgue I was missing from stock tune.

In Aug. 2011 I finally decided on mods for my car, and YES get a tune after ANY modifications, it makes the car run properly and smooth.
I am so happy with my car it performs & SOUNDS like, what most of us expected, it to sound from the factory.

congrats i cant wait to get my headers and my tune what mods you end of getting?