Modifying stock exhaust

[Pdpawlak09]

I know a bunch of folks have taken out the mufflers and resonator. I’ve heard mixed results from that, but I’m curious if anyone has done other small things to the stock exhaust by either just taking out the resonator or just changing the front pipe or any other combinations.

Personally, I like the look of the stock exhaust and given that most exhaust systems for this car are purely for sound and not performance I’m curious if anyone has tried other things than the standard cut out the mufflers and resonator.

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[RacingManiac]

I did the front pipe first and honestly I can't remember if it did anything to the sound. I am currently running without the resonator and it is louder and also more drony so if you are sensitive to that I would not recommend it. Though its not just resonator delete since we made a custom "mid-pipe" which connects new RV6 3" front pipe with a 3" section mid-pipe that does not have resonator. I also have a 3" axle back that has a V-band that connects to either the stock axle back that we modified to have a v-band disconnect or a custom muffler-less axle back. Currently I am running the stock one.

I think I'd like to try with a resonator without muffler but the way we have the mid-pipe made it would be hard to weld a resonator back in.

 

[ayau]

What's your goal for the exhaust? Noise, looks, performance?

All exhaust stock modifications after the cat is purely for sound. The factory catback isn't really a bottleneck for this engine.

 

[Pdpawlak09]

What's your goal for the exhaust? Noise, looks, performance?

All exhaust stock modifications after the cat is purely for sound. The factory catback isn't really a bottleneck for this engine.

Yea, I get the stock exhaust isn’t a performance bottleneck. I’m after sound while keeping the stock aesthetics. Curious what combinations folks have tried

 

[ayau]

Yea, I get the stock exhaust isn’t a performance bottleneck. I’m after sound while keeping the stock aesthetics. Curious what combinations folks have tried

I haven’t found any that sounded good enough for me to swap out the OEM exhaust.

Part of it is just that these turbo 4 engines don’t sound good. The Veloster N is an exception, but I believe they were able to make those noises by tweaking the tune. You can dump extra fuel when you lift off so the fuel combusts in your exhaust system.

 

[Rich19Si]

Beware, taking out the resonator or muffler will introduce drone that is much more noticeable when driving with passengers. Even the stock setup has a subtle but tolerable drone but I can’t imagine having it drone any louder than it already does.

 

[RacingManiac]

As noted by @Rich19Si the drone is actually A LOT worse in the back seat than the front....

I did what I did to drop weight on the exhaust system(stock one is actually decently light, but we were able to get 20lb out of it). In hindsight though I'd plan better to be able to put a resonator in...

 

[martindtjr]

I

As noted by @Rich19Si the drone is actually A LOT worse in the back seat than the front....

I did what I did to drop weight on the exhaust system(stock one is actually decently light, but we were able to get 20lb out of it). In hindsight though I'd plan better to be able to put a resonator in...

I'm not in the back. But, I would like a louder exhaust, it's too quiet. I'm looking at just modding the stock exhuast.

 

[Learn2turn]

I ran Ultimate Racing catLESS DP/FP combo with the stock exhaust and it was barely noticeable sound wise. I went with GReddy 2 tip and bought the *OPTIONAL separate front section to keep it an honest FULL 3in all the way through. All in the GReddy was $800 and I love the sound. The local Porsche club commented on the good sounds as well.

If I had to do it again, I would try cutting the whole rear muffler section off the stock exhaust and try that.

 

[tinyman392]

I ran Ultimate Racing catLESS DP/FP combo with the stock exhaust and it was barely noticeable sound wise. I went with GReddy 2 tip and bought the *OPTIONAL separate front section to keep it an honest FULL 3in all the way through. All in the GReddy was $800 and I love the sound. The local Porsche club commented on the good sounds as well.

If I had to do it again, I would try cutting the whole rear muffler section off the stock exhaust and try that.

Is it their new DDR exhaust? That's gotten high marks from people who have bought it.

 

[samji]

I have mufflers and 1st small resonator deleted. Doesn't actually drone that much, and actually sounds pretty decent down low(you get a bit of burbling which is nice). Only issue I have is that there is no sound after 4.5k RPM. All you hear is the turbo induction sound, aka dyson vacuum.

 

[n2da2nd]

I know a bunch of folks have taken out the mufflers and resonator. I’ve heard mixed results from that, but I’m curious if anyone has done other small things to the stock exhaust by either just taking out the resonator or just changing the front pipe or any other combinations.

Personally, I like the look of the stock exhaust and given that most exhaust systems for this car are purely for sound and not performance I’m curious if anyone has tried other things than the standard cut out the mufflers and resonator.

Same opinion on the look of the OEM exhaust.
I'm in to hear feedback on the muffler delete method as well. Been thinking about that but not really want to have any drone noise in the cabin.

 

[FJ26]

I know a bunch of folks have taken out the mufflers and resonator. I’ve heard mixed results from that, but I’m curious if anyone has done other small things to the stock exhaust by either just taking out the resonator or just changing the front pipe or any other combinations.

Personally, I like the look of the stock exhaust and given that most exhaust systems for this car are purely for sound and not performance I’m curious if anyone has tried other things than the standard cut out the mufflers and resonator.

So I've been looking at resonators and muffler tweaks too and was hopeful pulling one would be a quick and cheaper fix. S2K guys have been doing that for a while now.

Unfortunately, I think we may be SOL here. From the clips I've heard with resonators and/or mufflers removed, it does not sound good and more drone (granted sound quality could be bad) to me. As others have said, it's hard to make and I-4 with a turbo sound good.

Haven't looked into the front pipe but not sure how much that would impact the sound with a stock system? Maybe someone with more experience on that, could chime in?

 

[Learn2turn]

Is it their new DDR exhaust? That's gotten high marks from people who have bought it.

No, it is the 2 tip with the single muffler.

 

[martindtjr]

I know a bunch of folks have taken out the mufflers and resonator. I’ve heard mixed results from that, but I’m curious if anyone has done other small things to the stock exhaust by either just taking out the resonator or just changing the front pipe or any other combinations.

Personally, I like the look of the stock exhaust and given that most exhaust systems for this car are purely for sound and not performance I’m curious if anyone has tried other things than the standard cut out the mufflers and resonator.

I did the muffler only. It's a bit louder and no drone. I kept both resonators. This is how it should be. Stock is way too quiet. On youtube fyingato has a video.

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