CJPP unbranded axle-back?

Anthony 05 GT · Dec 10, 2017

Headshrinker, do you have a resonator delete or is this the only exhaust mod? I'm just curious because I have the Lethal H-pipe resonator delete.

HeadShrinker · Dec 10, 2017

Anthony 05 GT said:
Headshrinker, do you have a resonator delete or is this the only exhaust mod? I'm just curious because I have the Lethal H-pipe resonator delete.

This axle-back is the only thing I have done to my exhaust system.

Anthony 05 GT · Dec 10, 2017

Yeah, I'm just trying to gauge how loud it would be. After the resonator delete I think the car sounds like it should have from the factory, but not quite loud enough. I might just go ahead and order this.

csmaan12 · Dec 10, 2017

Would be nice to see a video of this exhaust with an H-Pipe, curious to see how it compares to the setup I have. Someone do it for science!

WildHorse · Dec 10, 2017

Mine for comparison; cats / stock mufflers / H-pipe:

A video clip of yours would be awesome

Anthony 05 GT · Dec 11, 2017

I'm pulling the trigger on this. Can't beat the price.

BmacIL · Dec 11, 2017

I'd expect these to drone with a resonator delete, FYI. Based on the comments about the sound, they're almost guaranteed to.

WildHorse · Dec 11, 2017

BmacIL said:
I'd expect these to drone with a resonator delete, FYI. Based on the comments about the sound, they're almost guaranteed to.

You think everything drones.. cept for a $1300 corsa axleback :lol: :cheers:

69mach1-395 · Dec 11, 2017

WildHorse said:
Mine for comparison; cats / stock mufflers / H-pipe:

A video clip of yours would be awesome

Is it me, or do I hear the rasp with just an H pipe resonator delete?

BmacIL · Dec 11, 2017

WildHorse said:
You think everything drones.. cept for a $1300 corsa axleback :lol: :cheers:

No, Borla, AWE, Krona and Roush also make ones that don't.

Very deep, bassy exhaust notes create a lot of boom in the car, which usually leads to drone. Simple resonated glass packs like this kind of muffler (and the SLP LM2, Magnaflow Comp) do precisely that. Some people don't care. Others do. The systems that don't are more baritone, less bass, and have some form of frequency cancellation to kill the 100-150 Hz stuff.

With the resonator on it's probably pretty manageable and not headache-inducing.

BmacIL · Dec 11, 2017

69mach1-395 said:
Is it me, or do I hear the rasp with just an H pipe resonator delete?

Stock mufflers are pretty raspy (and the rasp is very tinny) without the resonator.

BLSTOIS · Dec 11, 2017

BmacIL said:
No, Borla, AWE, Krona and Roush also make ones that don't.

Very deep, bassy exhaust notes create a lot of boom in the car, which usually leads to drone. Simple resonated glass packs like this kind of muffler (and the SLP LM2, Magnaflow Comp) do precisely that. Some people don't care. Others do. The systems that don't are more baritone, less bass, and have some form of frequency cancellation to kill the 100-150 Hz stuff.

With the resonator on it's probably pretty manageable and not headache-inducing.

0 drone in my MBRP Street

csmaan12 · Dec 11, 2017

BmacIL said:
No, Borla, AWE, Krona and Roush also make ones that don't.

Very deep, bassy exhaust notes create a lot of boom in the car, which usually leads to drone. Simple resonated glass packs like this kind of muffler (and the SLP LM2, Magnaflow Comp) do precisely that.

With the resonator on it's probably pretty manageable and not headache-inducing.

I'm not disagreeing with you because I fully support a good quality exhaust and its characteristics, but I'm going to state my case here.

So far I have tried the SLP mufflers I have with resonator and with an H-Pipe as well as just straight H-Pipe without mufflers. You're right about having the resonator keeping it significantly quiet and unnoticeable in the cabin. However I'll have to chime in on the drone with the H-Pipe.

In a nutshell there's barely any drone, there is rasp if you go 50%+ throttle above 3500RPM. Only drone I experience is temperature dependent, at 2000 RPM/highway speed like many other exhausts. Sometimes there's none at all, sometimes it's there, just depends on humidity and how hot/cold it is. But it's not so much that it would bother anyone, kind of like "oh yeah there it is" and you move on because it's not constantly booming. Most people that have been in my car don't even notice it.

Straight pipe, forget it...never straight piping this car because in my opinion it sounds like crap.

Tuxedomouse · Dec 11, 2017

csmaan12 said:
I'm not disagreeing with you because I fully support a good quality exhaust and its characteristics, but I'm going to state my case here.

So far I have tried the SLP mufflers I have with resonator and with an H-Pipe as well as just straight H-Pipe without mufflers. You're right about having the resonator keeping it significantly quiet and unnoticeable in the cabin. However I'll have to chime in on the drone with the H-Pipe.

In a nutshell there's barely any drone, there is rasp if you go 50%+ throttle above 3500RPM. Only drone I experience is temperature dependent, at 2000 RPM/highway speed like many other exhausts. Sometimes there's none at all, sometimes it's there, just depends on humidity and how hot/cold it is. But it's not so much that it would bother anyone, kind of like "oh yeah there it is" and you move on because it's not constantly booming. Most people that have been in my car don't even notice it.

I have the SLP LM2 with the Roush X pipe and this is my same experience.

The real litmus test was asking my wife if she thought the exhaust was too loud or drone-y inside the car at speed. She said "no, I mean, it IS a Mustang... it sounds just right". :headbang:

BmacIL · Dec 11, 2017

csmaan12 said:
I'm not disagreeing with you because I fully support a good quality exhaust and its characteristics, but I'm going to state my case here.

So far I have tried the SLP mufflers I have with resonator and with an H-Pipe as well as just straight H-Pipe without mufflers. You're right about having the resonator keeping it significantly quiet and unnoticeable in the cabin. However I'll have to chime in on the drone with the H-Pipe.

In a nutshell there's barely any drone, there is rasp if you go 50%+ throttle above 3500RPM. Only drone I experience is temperature dependent, at 2000 RPM/highway speed like many other exhausts. Sometimes there's none at all, sometimes it's there, just depends on humidity and how hot/cold it is. But it's not so much that it would bother anyone, kind of like "oh yeah there it is" and you move on because it's not constantly booming. Most people that have been in my car don't even notice it.

Straight pipe, forget it...never straight piping this car because in my opinion it sounds like crap.

I've heard the SLP LM2 with the Borla resonator. It has mild drone near/around 2000 rpm. It sounds nice and is very deep. It's overall a little boomy but not objectionable. Just the nature of a simple cylindrical muffler with packing. They'll all sound similar and produce similar results.

CJPP unbranded axle-back?

Anthony 05 GT

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HeadShrinker

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Anthony 05 GT

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csmaan12

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WildHorse

N/A or GO HOME

Anthony 05 GT

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BmacIL

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WildHorse

N/A or GO HOME

69mach1-395

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BmacIL

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BmacIL

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BLSTOIS

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csmaan12

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Tuxedomouse

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BmacIL

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