I'm in the final phase of rebuilding and supercharging my '97 4.6L. It's not a racing machine, just a daily driver.

I've expended over $10,000 so far and am running out of funds, so I would like to stay low budget, yet quality and done right. Don't care about appearance.

So... Should I be looking at headers that will bolt right up to the stock exhaust? Or should I replace the entire exhaust, which sounds rather expensive, considering that I'll have to install new O2 sensors, cats, mufflers, etc.? I already have a catback SI/DO installed.