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Discussion Starter · #1 ·
Removed the resonator today. I had some 2.5" stainless pipe left over from another car so I took it to the muffler shop and had them put it in place of the resonator. I took a couple videos of the sound difference with my phone and posted on the FB Veloster N Owners Club group. I can't get them on here due to the size.
The sound is the same in normal, but in N mode it is a little deeper and the pops are louder and start at a much lower rpm than I have experienced before. I am getting pops at 3-4K rpms now.
 

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I was gonna do this too but I think I am going to buy the AFE axle back exhaust instead. Still on the fence about it.

Best regards,

-Mike
 

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No need to cut the resonator. It won't make much difference in sound or performance. You can purchase the mid pipe from aFe Takeda for around $360 without having to ruining the OEM unit.
https://afepower.com/afe-power-49-37006-takeda-3-304-stainless-steel-mid-pipe
 

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No need to cut the resonator. It won't make much difference in sound or performance. You can purchase the mid pipe from aFe Takeda for around $360 without having to ruining the OEM unit.
https://afepower.com/afe-power-49-37006-takeda-3-304-stainless-steel-mid-pipe
Can you get away with bolting this on without investing in a tune cuz i feel like its not worth it if you gotta drop 300 on an exaust and then 600 on a jb4 just to make the car a little louder.
 

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You absolutely do NOT need a tune to run the mid pipe. You are not messing with the 02 sensors or cat so you will be just fine.

Best regards,

-Mike
 

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How much of a difference would that bolt on make with the N? Volume wise and amount of pops? I would ideally like the car to be a bit louder and i dont want to have to work the engine to hard to get those sweet pops. This seems fairly inexpensive and a simple DIY but exhaust tuning seems so complex when you don't know anything about it
 

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Hey Rem,

Can you take a picture of straight through the resonator for me? Thank you in advance.


Best regards,

-Mike
 

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Discussion Starter · #12 ·
No need to cut the resonator. It won't make much difference in sound or performance. You can purchase the mid pipe from aFe Takeda for around $360 without having to ruining the OEM unit.
https://afepower.com/afe-power-49-37006-takeda-3-304-stainless-steel-mid-pipe
I had the stainless steel pipe and the muffler shop charged me $30 to weld it on. So $30 vs $300 seemed like a no brainer at this point. In the future I think I would like to invest in the entire AFE system (or another brand as more are released), but for now this was a cheap way to add a little more sound. Since the stock pipe is 2.5" vs. the 3" of the AFE there may be some flow advantage to the AFE in the future after I get a down pipe and start running my JB4.

Also it DOES change the sound and increase the pops and you get them at a much lower RPM. I was surprised myself since the resonator was so small.

I don't do you tube, but I did post some videos of the sound on the Veloster N Owners Group on Face Book.

IMO worth spending a couple bucks on if you want a little more sound out of the factory exhaust.
 

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Discussion Starter · #13 ·
Hey Rem,

Can you take a picture of straight through the resonator for me? Thank you in advance.


Best regards,

-Mike
Sorry, I left it at the muffler shop. It was straight through and just had a ton of holes on the inside. It was fairly heavy so it is packed pretty well with sound deadener. So obviously no performance increase to be had from removing it, just a little more sound.
 

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Noise is just noise, it doesn't denote more performance. It's not worth the possible tickets or noise complaint from neighbors. You've cut the original exhaust, which is not permitted IAW the Hyundai Warranty. You can change it but not modify it. If you have any exhaust or engine related problems, Hyundai could in effect refuse any warranted related claim.
 

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With the afe mid pipe being 3 inch and the rest of the exhaust including downpipe being 2.5 will it affect back pressure at all or make the car do anything weird ? I’m planning on going full 3 inch and with the afe being the only axle back I could find that makes use of the exhaust valves I think I’m going to go with that one
 

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No not really, but a full 3" exhaust is more preferable. The aFe Takeda Axle BAck utilizes the OEM Exhaust Valve and the entire exhaust ie; midpipe, axleback is 3".
Ya that’s what I was planning on doing but I was going to buy the axle back alone and then buy the mid pipe separately cause it comes with out the resonator
 
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