Colin - STAPUFT Posted March 23, 2009 Report Share Posted March 23, 2009 When my Astro van (v6) got holes in the muffler from rust and age, it sounded like complete crap. Total Complete Crap. I was curious what it would sound like without a muffler and the guy at the shop let me crank it up with just the cat- no muffler. It wasn't that loud and he ran a straight pipe instead of the muffler for like no $. If I didn't tell people that there wasn't a muffler, they would have no idea. Really on to your point- the exhaust system channels the pressurized exhaust gasses out of a single LARGE opening at the end of your exhaust pipe. This single exit point localizes the sound and since it is larger, has a lower tone with less turbulance. Now... if you drill bunches of little holes, there will be lots of little places for the pressure to escape. It will whistle and cause "port noise" for your exhaust. Don't do it! Cut your muffler before you drill holes in it. At least you can put it back if you just cut it. Holes... eh, new muffler. Quote 12 - 12"s in the STAY PUFT 1989 Chevy Astro Build & Comment Log Un-Interrupted Build LogYouTube Channel Chevy Trailblazer 5.1 Dolby Digital DTS Install You have a beard of a mysterious sea captain. I would follow you to hell and back. Link to comment Share on other sites More sharing options...
BanginOnABudget Posted March 25, 2009 Report Share Posted March 25, 2009 now why would u wanna go and ruin a perfectly good buick. a 98 even... shit better be tuckin a turbo. Quote im taking out my passenger seat, battery is disconnected, going to unwire and take out the three amps, take out the 70+ lb box, then the platform so i can crimp 1 wire. Almost as bad as those fegs that put those horns in their grills and roll down the street distorting the block.... 1990 Jeep Cherokee 2 Dr. Big-3 in 0g on Stock Alt. Pioneer 6.5" and 5.25"s temp. until i can afford the new crescendos. Pioneer 6000ub Reciever NO amps at the moment. SA-15 on 1kw coming soon. MSG Me for a free enclosure design!! Flared port kits coming soon!! Link to comment Share on other sites More sharing options...
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