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Does a “catback” exhaust remove one or two resonators?

1721 Views 6 Replies 3 Participants Last post by  Arith
Hello, I’m new to the forum, I’ve popped on here a few times to learn a thing or two but never posted, I got a 21 Kia Forte gt last December with 21k miles on it now, did a few cosmetic mods, subwoofer and tint of course and want to get to the exhaust next, I’ve decided on the Xforce electronic valve exhaust as I’m in a college town with 4 police departments covering 5 miles. Anyways, I’ve heard people mention a secondary resonator on the gt, will this be removed with my main resonator as well when I install the catback? I know this may seem like a dumb question but I’ve never got under the back of the car and looked specifically for mini resonators, someone help me out
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The Xforce exhaust appears to remove the second Cat, Looks like somewhat of a resonator to replace the center muffler in the mid pipe and has a muffler in the axle-back portion.

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You can buy the Evilla Motorsports cat back no 2nd cat, with no resonator, no muffler, with 1 resonator in either the mid-pipe or axle back, or with 2 resonators:

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Factory exhaust:

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I have the Evilla Motorsports cat back exhaust with a Magnaflow resonator replacing the center muffler and Evilla's sport resonator replacing the rear muffler - as long as you drive normally the sound is NOT objectionable. It is only with half throttle-to-WOT that the exhaust gets loud.
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I don't have experience with the X-Force exhaust...looks like this might be a small resonator:

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Arith?
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