Adding Headers, should I get Tune redone?

I have a 95 Caprice Wagon that I had tuned by Brian Herter before I had headers on the car. Now, I just bought a set of SLP headers and I'm curious how much the tune will be off because of the headers? Whats to be gained in the tune? (I'm guessing quite a bit). The car runs amazing now, so I'm thinking about getting it re-tuned.

So far, my current mods are Cold Air intake, export pipes, and cat back. I know its mild, but I'm just wondering if its worth the effort to send the PCM back to get ref lashed for the headers?

Thanks in advance for the info!

It's not necessary unless you are deleting EGR while doing the headers.

Would a reflash gain any HP?

If you already had the car tuned for the cold Air intake, export pipes, and especially the cat back, I don't think the gains (if any) would be worth mailing the PCM back and forward. The tuners used to offer "tweaks" to a pcm tune they did for like 50$. I would ask pcmforless what parameters if any they would change for shorty headers vs manifolds.

You're probably better off saving the retune for when you do 1.6 rockers and springs.

They said $65 to reflash it!

"Yes we will have to make some changes for the headers, send it in for the retune and i will do it the day it comes."
Thank's Keith

Wow $65 is not bad......
or maybe my guy is laughing all the way to the bank with $200 in hand!