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spacedebris · 06-30-2014, 05:37 PM

there are many opinions about this. Its one of those "It's like a**holes, everyone has one" situations.

IMO, drilling a hole in the muffler is simply an intentional exhaust leak. Now discounting things like catalytic converters for smog reasons and mufflers for sound, the whole point of an exhaust system is to get the exhaust away from the cabin and the people in it. Drilling a hole in the muffler brings those fumes back into an area that your trying to keep it away from.

Another problem with drilling a hole is that many mufflers are coated with an "anti-corrosion" coating and by drilling a hole your compromising that coating.

Now in the rice-burner following many are in favor of drilling a small hole for removing the water and you can even find many videos showing that some of them are getting an 1/8 of a cup or so of water out after shut down. They insist that by removing this water they increase the life of their mufflers. But what they either dont think about or dont realize is that in very short order that hole they drilled will simply clog up with rust (compromised coating) or with simple minerals in the water will clog it up. Remember that things like carbon come out the tail pipe and it will not be long before smutz will clog up that tiny hole.

It is my opinion that spending the $50-$100 every 10 years for a new muffler is better than the alternatives.

06-30-2014, 05:37 PM	#4
spacedebris Registered User Join Date: Apr 2012 Location: Grants Pass, OR Posts: 543	Re: drilling muffler to reduce condensation there are many opinions about this. Its one of those "It's like a**holes, everyone has one" situations. IMO, drilling a hole in the muffler is simply an intentional exhaust leak. Now discounting things like catalytic converters for smog reasons and mufflers for sound, the whole point of an exhaust system is to get the exhaust away from the cabin and the people in it. Drilling a hole in the muffler brings those fumes back into an area that your trying to keep it away from. Another problem with drilling a hole is that many mufflers are coated with an "anti-corrosion" coating and by drilling a hole your compromising that coating. Now in the rice-burner following many are in favor of drilling a small hole for removing the water and you can even find many videos showing that some of them are getting an 1/8 of a cup or so of water out after shut down. They insist that by removing this water they increase the life of their mufflers. But what they either dont think about or dont realize is that in very short order that hole they drilled will simply clog up with rust (compromised coating) or with simple minerals in the water will clog it up. Remember that things like carbon come out the tail pipe and it will not be long before smutz will clog up that tiny hole. It is my opinion that spending the $50-$100 every 10 years for a new muffler is better than the alternatives.