I've recently been looking into the stage 3 kit and have been reading threads to find info, but i still have a few questions. My car now is just the Stage 2 kit and GMPP exhaust, and by the sounds of it i wont need to replace anything for the stage 3 kit but i just want to make sure.

Also, i've heard people saying that to have your A/C back, you just disconnect the stage 3 pcm and hook up the stage 2 pcm, what is involved in this?

Also, stage 3 kit is not recommended for highway driving, and i spend a lot of time on the highway. would switching back to the stage 2 pcm be all i had to do? or is that a precautionary thing and the stage 3 tune is fine for freeway driving?

I have searched on the site for answers to these questions, but havent had much luck.

I'm planning on running a 50shot with the kit, so anyone who has the stage 3 setup, or anyone who knows any answers, it would be much appreciated.

bump

 

if you don't plan on using it often, why not get a smaller pulley and have a 2nd tune handy so you can just swap back and forth. that will probably be cheaper, you don't have to worry about ac crapping out, and you'll have more flexibilty

 

i would use it often, the problem is that i spend about 5 hours/week on the highway and i'm not sure why its not recommended. and what is all involved in changing the pcm's?

 

Highway driving is no big deal at all, I drove 30 miles one way to work everyday in mine. It is just fine.

All you need to is unplug your stage 3 pcm and plug in your stage 2 which takes about 5 minutes in order to get your AC back.

Stage 3 rocks.

 

wow, thanks for the help guys, i think i'll be steppin up to the stage 3 kit in the spring! next week my car gets lowered, and my new headlights and shifter put in, so that will tide me over...... why does modding have to be so addictive?

Thanks again for the answers guys!

 

The stage III pcm hasn't went throught emissions testing therefor it is off road use only. As for the ac yoy can just jumper a toggle switch into the wiring harness to enable the ac. Again they disabled this to discourage on road use. There is a thread somewhere I read on how to do this pretty simple fix. I'd like to be running stage 3 by the summer with the 50 shot.

 

Just got my wiring pins today from Crate for the Nitrous hook up part for the ECU for GM Stage 3 . I bought all the pieces seperatly and these did not come with them. I will be hooking it up once the warranty is done in June.