Exhaust or no Exhaust?, does an exhaust system mess with your computer? Options

[Zeros2]

Ok so my step dad told me that i shouldn't get any exhaust parts for my car. That it would mess with my computer, and wouldn't help with fuel economy at all. is this true? i was planning on getting some headers a high flow cat and a magna flow resonator and combine it all together with 2.25 piping. Do you guys thinks this is a bad idea?

[Galcobar]

Piece of advice on the catalytic converter -- assuming it'll be an underbody position to accommodate the removal of the cat on the stock manifold, get a Car Sound converter with a resonated core. Car Sound is MagnaFlow's parent company.

This will give you a resonator in your system, as well as a high quality cat.

As a point, I guarantee the piece you were calling a resonator is nothing of the sort. It'll be a round-body straight-through absorption muffler. A perforated pipe wrapped in a combination of ceramic matting and stainless steel wool. This is not a resonator. A resonator is a hollow chamber which bounces soundwaves off each other to cancel them out.

A straight-through muffler's mostly about volume, and a little bit about tone. A resonator is a little bit about volume, but mostly about tone.

Being in Colorado, you'll have one cat stock, and one O2 sensor. As long as the sensor is correctly positioned on your new exhaust setup, your computer will get the information it needs to correctly manage the engine.