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Old 06-13-2017, 03:18 PM   #1
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In my opinion all twin can mufflers will drone I don't think there is any way around it . But it can be tamed. On " the beast " I have a GHL twin can muffler . GHL were known to be fairly loud with drone but a great sound otherwise . I decided to install Car Chemistry muffler inserts into the tips . I went with the twin disc style and it really tamed the noise/drone . She still screams like a banshee when I get on it but drive it like an old man and you barely know a aftermarket muffler is installed .
For me the OEM muffler is just too heavy , plus I like the room the aftermarket mufflers provide . There are many brands/styles of muffler inserts but the Car Chemistry seemed like good bang for the buck .
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Old 06-14-2017, 06:04 AM   #2
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Originally Posted by rfuerst911sc View Post
I decided to install Car Chemistry muffler inserts into the tips . I went with the twin disc style and it really tamed the noise/drone . She still screams like a banshee when I get on it but drive it like an old man and you barely know a aftermarket muffler is installed...There are many brands/styles of muffler inserts but the Car Chemistry seemed like good bang for the buck .
This sounds like exactly the ticket. Do they just pop into the tailpipe? Easy as that? That would be great!
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Old 06-14-2017, 04:37 PM   #3
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This sounds like exactly the ticket. Do they just pop into the tailpipe? Easy as that? That would be great!
Go to the Car Chemistry website and look them over . You can buy pre-made in different sizes or a builders kit . I went with the builders kit and welded it up myself . I also ordered from them some stainless steel packing which I wrapped the center pipes with before inserting into the tips . Drilled one hole at the bottom of each tip and used a pop rivet to hold in place . Been in for over 6 months and sounds the same today as the day I installed them.
This is not the only brand or style out there , just what I went with . Type in muffler inserts on any search engine and you'll find hours of info .
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Last edited by rfuerst911sc; 06-14-2017 at 04:40 PM.
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Old 06-15-2017, 03:38 PM   #4
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I put a Buluga Racing cat back on mine from Ebay. No drone nice and throaty at revving speeds...fairly tame at idle.

300 bucks.
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