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Resonator bigger than pipes?

 
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Old 08-18-2012, 01:01 AM
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Resonator bigger than pipes?

I've tried searching not only on preludes forums but everywhere and couldn't find the answer to my question. I got a 2.36" pipe that's from the greddy cat back and I need a resonator. I ordered a vibrant ultra quiet resonator but it's 2.5" do you guys have any experiences with this set up? I made an appointment tomorrow with the exhaust shop so im in need of feedbacks!
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Old 08-18-2012, 09:55 PM
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Re: Resonator bigger than pipes?

I had the same issue with my Greddy Evo2 exhaust. The resonators are notorious for breaking from the inside and causing a rasp/leak sound.


The Greddy pipe is indeed 2.3" and the resonator is 18" in length if I recall correctly. I went with a Vibrant 18" long, 2.5" inlet/outlet, 4" center diameter, resonator.


An exhaust shop will be able to weld a 2.5" resonator on without an issue.

The center exhaust in this photo is my old Evo2 with the Vibrant resonator welded on.

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Old 08-18-2012, 10:03 PM
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Re: Resonator bigger than pipes?

if you take the 2.3 pipes to an exhaust shop the can expand enough of the pipe to fit over it just enough to that the the res will sit over the top and be able to clamp it or weld it which ever you prefer but they are expandable to match the 2.5
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Old 08-19-2012, 12:13 AM
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Re: Resonator bigger than pipes?

Nice. Thanks for the input guys, got the resonator welded on today absolutely no more rasp and sounds like a beast! The exhaust shop thought they couldn`t fit the resonator in but I told him to try anyways. It was a tight fit so I suggested to bend the heatshield outwards to make clearance and worked like a charm. Vibrant ultra quiet resonator, strongly recommended if anyone is looking to dampen the sound and eliminate rasp.
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Old 08-19-2012, 12:31 PM
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Re: Resonator bigger than pipes?

Most people end up installing it on an it's side or completely removing the heat shield when installing that resonator. Be prepared to cut out the heat shield if it starts to rattle lol
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Old 08-20-2012, 05:31 PM
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Re: Resonator bigger than pipes?

Now that I installed the resonator, the next day my car threw me the cel light. Going to try pulling out some codes but could it be that there`s a leak at the resonator or the 02 sensors. Also smelled something burning from underneath my car at wot.
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Old 08-21-2012, 10:26 PM
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Re: Resonator bigger than pipes?

A leaky resonator will not cause a CEL.


Do you still have a catalytic converter?
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Old 08-23-2012, 04:29 AM
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Re: Resonator bigger than pipes?

Quote:
Originally Posted by wing8806 View Post
A leaky resonator will not cause a CEL.


Do you still have a catalytic converter?
Yeah. I still have it on.
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Old 08-23-2012, 07:07 PM
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Re: Resonator bigger than pipes?

Did you pull the code yet? What is it?
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Old 08-23-2012, 10:51 PM
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Re: Resonator bigger than pipes?

when i installed my evo 2 exhaust i got a cel and it was just my o2 sensor. $50 fix
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Old 08-24-2012, 10:07 PM
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Re: Resonator bigger than pipes?

Haven't pulled up the code yet. Doing it tomorrow. Hopefully it's nothing major.
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