Dynomax Race Bullets: COMPLETED

[zackmd1]

Thanks for the comments! Loving the system so far.

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[Bay1Stang]

The drive by sound is really, really good.

I wish Roush would release their exhaust already so we can hear what that sounds like, too.

 

[Dave2013M3]

Sounds outstanding..

Ford is nuts not offering the goodies on the V6 Mustang. It should have the premium as well as the PP offered.

Dave

 

[JWS]

Well I think I might have added some power to my 6

6.0 is with OEM mufflers. 5.5 is with my custom exhaust. Around the same conditions for both runs.

Any difference with the amount of fuel on board? Full tank is about a hundred pounds.

 

[zackmd1]

Any difference with the amount of fuel on board? Full tank is about a hundred pounds.

Fuel levels for each run were pretty similar. I would say if anything about .1 sec can be attributed to differing fuel weight. Temperatures for each run were in the low 40's and both were conducted on the same stretch of pavement.

 

[BmacIL]

Forgot to ask this some time ago, how is overall interior noise level on the highway? I know you said the drone is nearly all gone, but how much louder is it inside the cabin compared to stock?

 

[zackmd1]

Overall noise is only a mild increase over the stock exhaust. I would describe it as a more aggressive stock exhaust note. As long as the resonator tube is the right length someone could mistake my exhaust for the stock exhaust at highway speeds.

 

[YellowBee]

Should get a video of an ecoboost. Id be willing to do a video if you send me a pair

 

[BmacIL]

Overall noise is only a mild increase over the stock exhaust. I would describe it as a more aggressive stock exhaust note. As long as the resonator tube is the right length someone could mistake my exhaust for the stock exhaust at highway speeds.

Can you measure the dB in car at 70 mph? They're not the best, but there's plenty of noise level apps available. I often do longer (4+ hr) drives for work and such and I don't want it so loud that it becomes taxing. The stock exhaust is pretty much silent at highway speed. It'd probably be different, but for relative comparison sake, C&D tested a Ecoboost with PP at ~ 73 dB @ 70 mph. This is one of the reasons CAIs on NA cars are great - they sound louder and more aggressive when you get on it, no difference at all when you don't. Looking forward to one coming from Airaid and others.

Thanks!

 

[Redass Rob]

Can you measure the dB in car at 70 mph? They're not the best, but there's plenty of noise level apps available. I often do longer (4+ hr) drives for work and such and I don't want it so loud that it becomes taxing. The stock exhaust is pretty much silent at highway speed. It'd probably be different, but for relative comparison sake, C&D tested a Ecoboost with PP at ~ 73 dB @ 70 mph. This is one of the reasons CAIs on NA cars are great - they sound louder and more aggressive when you get on it, no difference at all when you don't. Looking forward to one coming from Airaid and others.



Thanks!

Another way to solve exhaust drone is to install some subs and drone the drone out lmfao


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[zackmd1]

Another way to solve exhaust drone is to install some subs and drone the drone out lmfao


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Is it sad that I actually thought about this as an option? :headbonk:

It was raining here today in Maryland so I will hopefully be recording some dB levels tomorrow.

 

[Redass Rob]

Is it sad that I actually thought about this as an option? :headbonk:



It was raining here today in Maryland so I will hopefully be recording some dB levels tomorrow.

You know it actually works well I did it in my truck because I thought it would be a good idea to dump the exhaust right behind the cab lol


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[zackmd1]

You know it actually works well I did it in my truck because I thought it would be a good idea to dump the exhaust right behind the cab lol


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I'm curious how you went about doing this? If you don't mind sharing?

 

[zackmd1]

Can you measure the dB in car at 70 mph? They're not the best, but there's plenty of noise level apps available. I often do longer (4+ hr) drives for work and such and I don't want it so loud that it becomes taxing. The stock exhaust is pretty much silent at highway speed. It'd probably be different, but for relative comparison sake, C&D tested a Ecoboost with PP at ~ 73 dB @ 70 mph. This is one of the reasons CAIs on NA cars are great - they sound louder and more aggressive when you get on it, no difference at all when you don't. Looking forward to one coming from Airaid and others.

Thanks!

These were taken this morning on my way to work. Like you said these apps are not the greatest so these readings might be alittle off from true dB levels. I decided to follow StainlessWorks method in order to compare to their EB and GT exhaust.

25mph

Peak: 62 Max: 73 Avg: 62

50mph

Peak: 72 Max: 75 Avg: 71

70mph

Peak: 72 Max: 73 Avg : 70

I will be recording again on the way home today to confirm these numbers.

 

[BmacIL]

Great! Thanks much. That's not really that loud at all. At 70 mph cruise I'd imagine road/wind noise starts to become dominant, and really, the tone has a lot to do with how harsh the noise level is for long drives. Yours sounds really nice.

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