resonator

I have 99 civic LX with custom exhaust, flowmaster muffler (40 series I think). If I have a resonator welded on will it change the sound of the exhaust any? The resonator I purchased off e-bay, told me it was a high flow cat lol. Was going to just chunk it, but if it will make my exhaust sound better I'll have it welded on..and Yeah I have a cat converter, it's under the car like the EX version.

I have 99 civic LX with custom exhaust, flowmaster muffler (40 series I think). If I have a resonator welded on will it change the sound of the exhaust any? The resonator I purchased off e-bay, told me it was a high flow cat lol. Was going to just chunk it, but if it will make my exhaust sound better I'll have it welded on..and Yeah I have a cat converter, it's under the car like the EX version.

LOL, a high flow catalytic converter is basically just a resonator. And yes , it will enhance the sound of your exhaust, have a high flow cat converter will also increase your horsepower but will lose some low end torque (loss of backpressure). You don't weld it on extra, its a replacement catalytic converter, whether its actually legal is up to your states emissions laws.

LOL, a high flow catalytic converter is basically just a resonator. And yes , it will enhance the sound of your exhaust, have a high flow cat converter will also increase your horsepower but will lose some low end torque (loss of backpressure). You don't weld it on extra, its a replacement catalytic converter, whether its actually legal is up to your states emissions laws.


Ahh that explains alot, well thanks for the info.

Not aall resonator are High flow cats. They are 2 ddifferent things. A high flow cat is just that, a high flow cat. A true high flow cat is street legel, some "not street legel" high flow cats exist, but these are basicallty hallow pips that look like a cat from the outside, also know as a test pipe.

Now, a resonator, that is what is used to tue the exhuast note. Muscle cars have used it forever, even Greddy and DC use resomators to help tune the exhuast note.

Me, I have the typicaly honda/acura/import exhuast sound, so I did a custom 2 1/4" cat-back exhuast years ago. I put an 18" resonator on it, because i wanted as deep and throaty a sound as posible from a civic (a B18B1 in it). It worked, many people describe it as "throaty" As throaty as a muscle car or V8? Heck no, no 4 banger could be, LOL. But it's deep ad thoraty none the less...a lot lower and more throaty than most import exhuasts, never had a complaint. For the record, I ALSO have a high flow cat from random tech on there. A resonator and High flow cat are 2 different things entirely, ment to do 2 dfferent things entirely. The resonator is a weld on piece...they are ALWAYS a weld on piece. A high flow cat can be weld on or bolt on...I have a bolt on high flow cat.

The ebay guy probably labled it as "high flow cat" inccorectly, thinkin people would use it as a test pipe or something. Don't screw with that, if you want a street legel high flwo cat, get a Random Tech direct bolt on cat. It's street legel too. If you want to use the resontator, you can, it will changethe exhuast note, thoug to what extent I can't say. How long is it? A longer one wll deepen the tone more(helping it sound less like an annoyingly high pitched whine and more throaty) than a shorter one. How long is it? If it's 15" or longer, put it one, it wil change the exhuast note. Thats one of the 2 things resonators do. They are used to change, deepen/tune the exhuast note, and they also quiet the quite a bit. Still loud, but much more bearable and less annoying.