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Discussion Starter · #1 ·
So.... I did a ton of research on this "mod" and I found that I was having a hard time finding a decent video/soundclip that had the the sound once this mod had been accomplished. I recently accomplished this and thought I would post up my videos to show everyone the difference it made in the sound of the bike.

The first link is the before video.


This one is the after video......


I took a 12 inch drill extension and attached a 3/4" hole saw to the end of it. I had done some research and read somewhere that someone used a 7/8" drill bit for this same procedure. I initially bought a 7/8" hole saw and upon getting to the house I realized that the 7/8" hole saw would not fit past the pipe opening. After a quick trip back to the tool store, the 3/4" fit like butta!! When drilling make sure to apply "slow speed, heavy feed" with your drill and the center section of the hole you drill will stay inside the holesaw. The whole process took less time than it did for me to set up the extension and the holesaw. Another piece of advice would be to MAKE SURE YOUR HOLESAW IS TIGHT BEFORE SLIDING IT DOWN THE EXHAUST PIPE!! You don't want it to come off the extension while you are drilling, because then you may be screwed. The overall sound difference was good for me. I wanted it to be a little louder, but I didn't quite have the dough to throw down on a new set of cans. Eventually I would like to upgrade to a proper exhaust can, but for now, this makes me smile everytime I roll on the throttle.

I hope everyone is doing well. I haven't been able to ride much lately (notice the snow and ice on the ground in the video) but hopefully mother nature will give me a break soon so I can get out there and enjoy my toy.

Be Good!!
 

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Discussion Starter · #3 ·
Sounds good Man !!! I think I heard your neighbor in the background saying something
LMAO.... Must not be a rider Bahahaha!!
I had my cell laying under the camera, and I got a text in the middle of the video... hehehe. I try to be nice with the throttle until I've made it out of the neighborhood....
I try...... LOL
 

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so, without taking anything apart just slide a 3/4 hole saw with a extension on it and drill anything in the way on the 4 holes the pipes have .? lol i like the sound i might do this myself, i'm on the same position as you. not ready to spend 1k on a set of pipes yet. any further explanation would be greatly appreciated. thanks.
 

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Discussion Starter · #5 ·
so, without taking anything apart just slide a 3/4 hole saw with a extension on it and drill anything in the way on the 4 holes the pipes have .? lol i like the sound i might do this myself, i'm on the same position as you. not ready to spend 1k on a set of pipes yet. any further explanation would be greatly appreciated. thanks.
You got it! I didn't take anything apart.... Just slide the holesaw down the pipe and drill. If you take a flashlight and look down the pipe, you will see what you will be drilling. It is only 7-8 inches down the pipe. When drilling, make sure not to push your bike off the kick stand. ALSO, when you start the bike for the first time, there will be some metal shavings in there, so make sure no one is standing behind the bike when you rev it up. You don't have to go that big, that is just what I chose. I have heard of people using 1/2" drill bits as well. As soon as you break through the firts layer, stop drilling. If you do it right, the metal circle that you are cutting out will be lodged inside the holesaw. Slowly slide it back out and pry out the metal circle. As mentioned before, make sure your hole saw assembly is TIGHT!! You don't want it to slide off the end of the extension. It would be just about impossible to fish it back out of there. The whole process took me about 5 minutes. Good Luck!!!:D
 

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I did the same mod over a yr ago along with the airbox mod a K&N filter and +1 on the rear sprocket. It really did make a noticeable improvment over stock!
 

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how did you get video to post i took one on my cell and emailed it to me no sound on here though.:screwy::screwy::screwy:
 

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So.... I did a ton of research on this "mod" and I found that I was having a hard time finding a decent video/soundclip that had the the sound once this mod had been accomplished. I recently accomplished this and thought I would post up my videos to show everyone the difference it made in the sound of the bike.

The first link is the before video.

YouTube - 2007 Z1000 Exhaust Mod (Before drilling baffles)

This one is the after video......

YouTube - 2007 Z1000 Exhaust Mod (After drilling baffles)

I took a 12 inch drill extension and attached a 3/4" hole saw to the end of it. I had done some research and read somewhere that someone used a 7/8" drill bit for this same procedure. I initially bought a 7/8" hole saw and upon getting to the house I realized that the 7/8" hole saw would not fit past the pipe opening. After a quick trip back to the tool store, the 3/4" fit like butta!! When drilling make sure to apply "slow speed, heavy feed" with your drill and the center section of the hole you drill will stay inside the holesaw. The whole process took less time than it did for me to set up the extension and the holesaw. Another piece of advice would be to MAKE SURE YOUR HOLESAW IS TIGHT BEFORE SLIDING IT DOWN THE EXHAUST PIPE!! You don't want it to come off the extension while you are drilling, because then you may be screwed. The overall sound difference was good for me. I wanted it to be a little louder, but I didn't quite have the dough to throw down on a new set of cans. Eventually I would like to upgrade to a proper exhaust can, but for now, this makes me smile everytime I roll on the throttle.

I hope everyone is doing well. I haven't been able to ride much lately (notice the snow and ice on the ground in the video) but hopefully mother nature will give me a break soon so I can get out there and enjoy my toy.

Be Good!!

The video of "BEFORE" sounds good but in the video of "AFTER" it sounds better than before. :D
 

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Discussion Starter · #10 ·
how did you get video to post i took one on my cell and emailed it to me no sound on here though.:screwy::screwy::screwy:
I have the same problem with my videos from my cell phone..... I uploaded these from my "real" camera.... Didn't have a problem.....
 

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Hello, iam new here,

Does anyone have some pictures from the drilling exhaust?
because i also want to do it, but i dont know where to drill.

sorry for my bad english,
 
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