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General Category >> Rubber Side Down! >> stock muffler mod: how to
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Message started by ed daugherty on 08/01/08 at 18:17:01

Title: stock muffler mod: how to
Post by ed daugherty on 08/01/08 at 18:17:01

tools:
7/8 hole saw drill bit
http://www.lowes.com/lowes/lkn?action=productDetail&productId=178326-28303-34014-14A&lpage=none
12" hole saw extension
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100495386
dynojet stage 1 jet kit (needle and dj144 main jet)
1/2 inch drill bit

I would recommend using a corded drill. I used a 9.6V drill and I had to charge the battery twice to get the job done.

Insert the hole saw in the hole in the muffler, it's a tight fit but it will go, it stuck on me about 3 inches in i just pushed and drilled and it went on in. push it all the way through...the drill will be about 2 inches from the back of the muffler. drill through the first plate. take the hole saw out and exchange it for a 1/2 inch drill bit and drill through the second plate.
Next replace the main jet and the needle according to the instructions in the jet kit.
I adjusted the air/fuel mixture screw to about 2 turns out. I also have a K&N air filter in the stock filter box. This mod opened up some power! it's pretty quiet at idle but when you get going it begins to open up. I live in an apartment, so i didn't want to wake the neighbors when I come home at 3am. I will post an audio clip later.

Title: Re: stock muffler mod: how to
Post by bill67 on 08/02/08 at 09:29:50

Thats a good way to do it

Title: Re: stock muffler mod: how to
Post by ed daugherty on 08/02/08 at 10:47:54

it will do until i get the screaming eagle or a dyna slip on!

Title: Re: stock muffler mod: how to
Post by flcruzr on 08/02/08 at 19:13:18

Thanks Ed D, for sharing your method, this is what I want to do, I now have to find the time to do it.

Title: Re: stock muffler mod: how to
Post by flcruzr on 08/02/08 at 19:18:28

Ed D, must the rivets be drilled out first before starting your steps? I read that other's have drilled the rivets out first?