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16 hours ago, Dmart said:

Exhaust Mod:Frio Edition. 

dB levels were captured before and after mod in same place. Flapper open.

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20190709_190618_HDR(2).jpg

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Frio Light, LOL! Nicely done! 

 

Thanks for measuring the dB on this. I was curious about that myself. 4 dB improvement while idling is pretty good. 

 

Was that on the cold start? I really notice that it's louder on the cold starts. Sounds really good. 

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21 minutes ago, econometrics said:

Frio Light, LOL! Nicely done! 

 

Thanks for measuring the dB on this. I was curious about that myself. 4 dB improvement while idling is pretty good. 

 

Was that on the cold start? I really notice that it's louder on the cold starts. Sounds really good. 

No cold start was definitely louder. I waited till it was a true idle before measuring

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14 minutes ago, Dmart said:

Shit I did mine counter clockwise away from the front of the truck

Just look to see which direction you turn it makes the spring load up more tightly. That's the way you want to turn it. Mine was clockwise to do that. 

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79ee5323849fb9a16519096be4bdfab7.jpg5bb69a15b65fb712e3daf220077cbc1f.jpg

 

Add me to the list. Just finished doing this cheap mod. Had everything except a few clamps so it cost me under 10 bucks. Haven’t tried it out yet. I met resistance turning clockwise. Will report back

 

 

Sent from my iPhone using Tapatalk

 

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I'm wondering if there's a way we could buzz that little notch off on the flapper valve? The part that sticks out by the welded end, which gives compression to the spring? You cut that off and the spring will loose it's pressure, meaning you won't have to worry about those clamps loosening over time and the valve slowly shutting. 

 

It's probably unlikely that the clamps would lose bite and allow that, but it was something I thought to check after a few days of running mine wide open. 

 

Then again, I did tighten my clamps down with my cordless impact, ha. 

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Of note, I have noticed that my exhaust has been crackling and popping a bit when coasting into a traffic light to make a turn. Didn't do that with the flapper in it's regular position.

 

I tried removing the last mesh screen cover to see if that might make it stop.

 

Sent from my Pixel 2 using Tapatalk

 

 

 

 

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Never knew about the res screens... I have a flowmaster 40 series muffler I installed a while back, but just covered the screens w AC tape...  much deeper tone...   

 

Thanks for the idea...

 

For you beer can users... Ghetto fab... Strong work.  

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6 hours ago, ShamrockShooter said:

Of note, I have noticed that my exhaust has been crackling and popping a bit when coasting into a traffic light to make a turn. Didn't do that with the flapper in it's regular position.

 

I tried removing the last mesh screen cover to see if that might make it stop.

 

Sent from my Pixel 2 using Tapatalk

 

 

 

 

Thanks for the feedback. I haven't noticed that yet. I'll report back if I do. 

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On 7/10/2019 at 12:32 PM, econometrics said:

Just look to see which direction you turn it makes the spring load up more tightly. That's the way you want to turn it. Mine was clockwise to do that. 

Redid the flapper this time clockwise, dB shot up to 66-67.

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