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$20 Exhaust Fix 2019 5.3 z71

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econometrics Senior Enthusiast

econometrics

Posted
Posted

Internet provider might not have gotten paid after the cost of installing the Borla. 
 

Should’ve used beer cans like the rest of us... ??‍♂️

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econometrics
econometrics

If we could hand out trophies on the internet, we would most certainly give you one. 

Dmart
Dmart

Exhaust Mod:Frio Edition.  dB levels were captured before and after mod in same place. Flapper open.

Thejet07
Thejet07

So then don’t do it and be on your merry way. Some people like it some don’t. It does change the tone for the better IMO. Carry on Sent from my iPhone using Tapatalk

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AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted

I can’t imagine spending the $1000 or so on a Borla system just to replace factory stainless steel mandrel bent pipe. 

 

That’s a lot of money for more noise and no performance gains. 

KozzyJr Enthusiast

KozzyJr

Posted
Posted

You sir had me going. It was a good chuckle. So I crawled my old ass under my truck and noticed that the 6.2 exhaust has 2 of these flapper valves and not screens. 

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KozzyJr Enthusiast

KozzyJr

Posted
Posted

So I just tried this free mod. Absolutely no difference in tone with the 6.2. Looks like I’m gonna have to crack open my wallet 

eppieguy Senior Enthusiast

eppieguy

Posted
Posted
36 minutes ago, KozzyJr said:

So I just tried this free mod. Absolutely no difference in tone with the 6.2. Looks like I’m gonna have to crack open my wallet 

The 6.2's do not have the screens, and I agree, I opened both flaps and there is no noticeable difference in sound. 

KozzyJr Enthusiast

KozzyJr

Posted
Posted
1 hour ago, eppieguy said:

The 6.2's do not have the screens, and I agree, I opened both flaps and there is no noticeable difference in sound. 

I was a little disapointed when nothing happened lol 

eppieguy Senior Enthusiast

eppieguy

Posted
Posted
10 minutes ago, KozzyJr said:

I was a little disapointed when nothing happened lol 

As was I ? 

SILVER SLED Senior Enthusiast

SILVER SLED

Posted
Posted

So I have had a question about the screen blocking.  I'm kinda afraid to ask, because I'm not trying to be a smartass and be partaking in the above argument.  For what it's worth I'm all for cheap mods.  I'd replace or delete a muffler before I paid big money for an aftermarket exhaust system...

So does exhaust flow through the screens everybody is blocking off?  If so, wouldn't blocking the screens off kinda  be restricting exhaust flow? 

Thejet07 Enthusiast

Thejet07

Posted
Posted

I would say the exhaust is dispersed/muffled by the screens. By blocking it my guess would believe it’s pushing more direct exhaust out the rear giving a deeper tone. Just a guess


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AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted

Half assed scientific guestimate but it probably creates some drag/back pressure that does like said above and slows the exhaust gases down. 

Moend Enthusiast

Moend

Posted
Posted

Anyone knows why GM installed this system in the first place. The flapper doodad sounds like to add restriction and I thought more flow is better?!

Also, does this mod effect mpg?

Thanks!

 

AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted

Sound reduction and I bet the baffles are cheaper than the older resonators. 

 

The flappers are just proof that more people would complain about the occasional odd exhaust noise than would notice the bit of performance loss they cause. 

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