Decision making help.

**brown1911** · 03-21-2010, 10:03 AM

Hey evryone I need a little help making up my mind. I have a 2000 z28 ls1. I have heads off engine due to blown head gasket issue. I am installing bbk shorty headers when I put it back together. My question is I want to send my ecm off for a tune. The tuners say they can eliminate the egr and air systems. Should I eliminate these 2 systems? Anyones thoughts would be greatly helpful. Also where is the best place to send ecm to for tuning?

**c5z28** · 03-21-2010, 10:23 AM

If you want a mail order tune then frost is the guy, go to sponsors on top of the page and you should see his name. I don't know your smog laws so if they don't check for air/egr then it is a nice way to clean up the bay. You have an ls-6 manifold or are you just going to plug the hole?

**BLK2KSS** · 03-21-2010, 10:33 AM

I would say it all depends on how Tenn. is with emissions. If theyre like Florida then I say do away with the egr and air. Also, why the shorties? Why not long tubes? If its because u wanna keep the cats then maybe you should just keep the rest of the emissions stuff too.

**brown1911** · 03-21-2010, 10:34 AM

We have smog laws in my county, but they just scan the ecm, they don't do physical inspection. Wil the engine perform ok without the egr system?

**pajeff02** · 03-21-2010, 10:34 AM

No EGR on our car from the factory. I did delete the secondary air system and sent the PCM to Frost for a mail order tune. Like said above, depends on the emissions law in your state and what you want to do with the car. Here is a write up on ditching the secondary air system: http://www.ls1.com/forums/showthread.php?t=130641