Hello Devin, Headers will deepen the growl of your stock exhaust and further it with aftermarket exhaust so you have to be careful on your choice of exhaust to marry with the headers and high flow cats.
I recommend Corsa, or Magnaflow.
Find another Dealer LOL
I have developed what I call my 415 RWHP Street package, comes complete, Headers, CAI, Hand Held tuner, and Custom Tune. 1999.00 shipped.
Quick question, well two. I'm looking for a CIA, header, exhaust combo to buy and have installed at the same time. Will that trip my O2 sensor? Dealership I go through is a tad bit on the insane side when it comes to abiding by the warranty. Also, I have looked and researched a little bit on exhaust systems, I'm trying to find a loud deep growl of a sound... any recommendations?