Hi I have a 2004 impala with the 3.4 motor. I was wondering what performance upgrades that I could do. Most stuff I have found is for the 3.8. Any info would be helpful.

 

Here are a few, K&N stock air filter replacement, part number 33-2141-1. Jet Perfomance also has a JET Power Control Unit- part number 68002BUY NOW.

 

How much will that jet chip give me?

 

even though that chip is for a lumina it will work?

 

They havethe unitfor a 3.4L Impala, but it works with the lumina too. It also looks like theyhave a mass airflow sensor, for the 3.4, along with some other parts, that you might want. Check out thesite see what might help you.