Drilling into Corsa Extremes
Thread Starter
Racer
Joined: Feb 2001
Posts: 365
Likes: 77
From: Gold Canyon, Arizona
Drilling into Corsa Extremes
I have Corsa Extremes on my '15 1LT 7-speed and would like a little more overall sound. Have read hundreds of posts here about mods and exhaust systems, but was wondering if anyone has tried a more basic solution of drilling quarter-inch holes, one at a time, in their Extreme mufflers until the sound was "right". Would drone increase if this was done?
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"Back to the wall goes Berra, it is...over the fence, homerun, the Pirates win!!"
________________________________________ ____
"Back to the wall goes Berra, it is...over the fence, homerun, the Pirates win!!"
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
There's a reason that exhaust pipes extend to the very rear of the car. Because the carbon monoxide in the exhaust gas can kill you. So you want to create a situation where the exhaust "leaks" under the car and can find it's way into the car cabin, especially when the car is stationary. Probably not the best idea you've had.
Drifting
Joined: Aug 2015
Posts: 1,434
Likes: 183
From: Maple Ontario
Actually, once hot, the cats do an excellent job of cleaning the exhaust, i think it would be harder than you think to kill yourself with a few holes in the muffler. Many mufflers had drain holes in there already.
Pro
Joined: May 2015
Posts: 710
Likes: 93
I agree, if the drilling was done near the rear it should be 'ok'....
Though, I find this solution hacky and I also find it hard to believe that it would give the desired effect. It will be louder... sure. Though, will it sound 'good'? Doubtful.
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
The cats have no effect on the generated Carbon Monoxide.
Pro
Joined: May 2015
Posts: 710
Likes: 93
No, the Monoxide is there to stay, but as long as he drilled far enough to the rear, he stands a decent chance at being ok.
The whole "drill for noise" thing has been done on every car forum I have been on, and I haven't read about any health concerns...
The whole "drill for noise" thing has been done on every car forum I have been on, and I haven't read about any health concerns...
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Drifting
Joined: Aug 2015
Posts: 1,434
Likes: 183
From: Maple Ontario
uh?? that is the whole point of a catalytic converter, google it if you don't believe me.... modern cars actually can CLEAN the air ( once at light off temperature )
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
A reduction and oxidation reaction occurs inside the device. Carbon monoxide (CO) in converted to carbon dioxide (CO2). Nitrogen oxides (NOx) are broken down into nitrogen gas (N2) and oxygen gas (O2). And hydrocarbons (HC) are converted into carbon dioxide (CO2) and water (H2O).
Pro
Joined: Apr 2013
Posts: 602
Likes: 58
From: Detroit area and Nashville area What day is it? Between MI & TN
Step 1: Add on off-road x-pipe (Corsa or Borla) if you have not already.
Step 2: Add ARH mid-length headers (which allows you to keep the x-pipe) or long tube headers and associated matching x-pipe.
Step 2: Add ARH mid-length headers (which allows you to keep the x-pipe) or long tube headers and associated matching x-pipe.
Thread Starter
Racer
Joined: Feb 2001
Posts: 365
Likes: 77
From: Gold Canyon, Arizona
There's a reason that exhaust pipes extend to the very rear of the car. Because the carbon monoxide in the exhaust gas can kill you. So you want to create a situation where the exhaust "leaks" under the car and can find it's way into the car cabin, especially when the car is stationary. Probably not the best idea you've had.
________________________________________--
"Back to the wall goes Berra, it is...over the fence, homerun, the Pirates win!!"
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
