What exhaust is quite but has the performance for a 2006 Civic LX?

Question

I've been a racer for 17 years but have been hibernating for a bit. I have a 2006 Honda Civic LX that I want to put an exhaust on. Back in my day Dynomax was the one to choose and I used it on my 13.8 sec DX.

But now I don't want the loud noise, I want an exhaust that is quite but has the performance also.

Any suggestions would be greatly appreciated.

Answer 1

An exhaust isn't going to get you any measurable performance without the mods that go with it.

I mean, sure you could slap an intake and exhaust on the car and it would get you a little bit of extra power on the dyno, but there's no way you'd be able to tell the difference.

To get real power you have to do all of the associated mods. The stock intake manifold was designed to flow as much air/fuel as the stock intake would allow. You have to have it ported and polished to match the extra air. You'll also need a cam to change the duration of the cam and allow that extra air/fuel enough time to get past the valves. When considering an exhaust you need the full system - from the headers all the way back. More air in is no good unless you can get all of it back out easily.

Now that you've created more air you'll need more fuel. A high volume fuel pump and aftermarket rails/injectors are good. The final thing is to have your computer tuned. Your car was designed to run on a whole lot less than what it would be getting by now, so you have to tell it what it has to work with so that it can use it efficiently.

I know that's more than you asked for, but you said you were interested in performance and a Honda Civic needs at least the above mods to be competent with the rest of the pack.

Answer 2

who knows/