Cobra 2-into-1 Power Hp Pro too loud ... question - Kawasaki Vulcan Forum : Vulcan Forums
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post #1 of 28 (permalink) Old 09-23-2010, 02:54 PM Thread Starter
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Cobra 2-into-1 Power Hp Pro too loud ... Added a Smartpartz Baffle

So finally got a motorcycle license, tag/title, insurance, etc . Went for a ride and almost went deaf lol. Ears were ringing for an hour.

I thought I saw a post for aftermarket baffles someone put on their Cobra pipes, but I cant seem to find the post now.

Suggestions?

*EDIT*

Well I installed the Smartpartz Baffle today.

I had to remove all the heatshields. Then I had to remove the rear section of the tailpipe. Removed the 4 allen screws from the endcap of the pipe. Removed the end cap of the pipe. I put a wooden dowell down the pipe from the end connected to the front pipe section. This allowed me to bump out the Cobra baffle.

Removed fiberglass around the factory baffle. Put new baffle inside Cobra baffle. Drilled two holes matching the new baffle. Inserted and tightened allen bolts in new baffle.

Reinstalled everything and cranked her up.

Here are the before/after decibels.

At idle when cold 8" from pipe end.
108/100

At idle when warm 8" from pipe end.
100/89

At around 4000 rpm's 8" from pipe end.
127/120

At around 4000 rpm's on the rear seat
111/103

So it helped a decent amount. But the real advantage is the tone change. Before the tone was a bit high pitched which when coupled with the higher volume gave me a bad headache. Now the tone is a lot lower and with the reduced volume no more headaches yet

And the power seems to be exactly the same, no difference.

Now back to riding.

Last edited by hailrazer; 09-30-2010 at 02:24 PM.
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post #2 of 28 (permalink) Old 09-23-2010, 03:00 PM Thread Starter
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Sheez I always find the answer 5 minutes after posting.

Anyways it was the Smartpartz Baffle.

If this will cause any problems please inform me
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post #3 of 28 (permalink) Old 09-23-2010, 03:51 PM
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Quote:
Originally Posted by hailrazer View Post
Sheez I always find the answer 5 minutes after posting.

Anyways it was the Smartpartz Baffle.

If this will cause any problems please inform me
If still to loud, try using earplugs, i use them all the time and i can still hear everything around me including my scala bluetooth, intercom and headset.

As i flipped into 5th, i couldnt remember a damn thing she said
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post #4 of 28 (permalink) Old 09-23-2010, 03:56 PM Thread Starter
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Yes I will definitely do this if the baffles don't help.

I get bad migraines and can't handle the loud noise. Weird thing is the pipes are quiet at low speeds, but at 55 and up they get terribly loud.
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post #5 of 28 (permalink) Old 09-23-2010, 04:13 PM
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Mmmmm I'll say if you have to use ear plugs then they're probably too loud for you and everyone around you. You can wrap the baffles with exhaust wrap, this will help lower the noise but still have a nice rumble loud enough were vehicles can hear u on the freeway.


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post #6 of 28 (permalink) Old 09-23-2010, 05:18 PM
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I put the Smartpartz baffles in my Cobra 2 into 1 and it helped bunches. You won't need ear plugs
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post #7 of 28 (permalink) Old 09-23-2010, 05:30 PM Thread Starter
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I put the Smartpartz baffles in my Cobra 2 into 1 and it helped bunches. You won't need ear plugs
Thanks.

What was the main reason for you adding the baffle?? Was the Cobra to loud when accelerating or running in 5th gear at near highway speeds.

Also was it a problem installing the baffle? I looked in the end of my Cobra pipe and just see a tube about 12" long with wire on the edges. Doesn't seem to be anything in there. Am I missing something?
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post #8 of 28 (permalink) Old 09-23-2010, 06:37 PM
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Thanks.

What was the main reason for you adding the baffle?? Was the Cobra to loud when accelerating or running in 5th gear at near highway speeds.

Also was it a problem installing the baffle? I looked in the end of my Cobra pipe and just see a tube about 12" long with wire on the edges. Doesn't seem to be anything in there. Am I missing something?
I guess I'm getting old it was just too loud. My Cobras had an open type of baffle that was wrapped in fiberglass, had to drill 2 holes to mount the baffles and it just kind of mellowed out the soound. don't want it any quieter or louder.
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post #9 of 28 (permalink) Old 09-23-2010, 07:17 PM
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Quote:
Originally Posted by hailrazer View Post
Thanks.

What was the main reason for you adding the baffle?? Was the Cobra to loud when accelerating or running in 5th gear at near highway speeds.

Also was it a problem installing the baffle? I looked in the end of my Cobra pipe and just see a tube about 12" long with wire on the edges. Doesn't seem to be anything in there. Am I missing something?
That's the removable baffle and it's wrapped in fiberglass I believe there's one screw holding it in. Still a pita to remove I removed the fiberglass around mine but I wanted more sound.
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post #10 of 28 (permalink) Old 09-30-2010, 02:04 PM Thread Starter
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Well I installed the baffle today.

I had to remove all the heatshields. Then I had to remove the rear section of the tailpipe. Removed the 4 allen screws from the endcap of the pipe. Removed the end cap of the pipe. I put a wooden dowell down the pipe from the end connected to the front pipe section. This allowed me to bump out the Cobra baffle.

Removed fiberglass around the factory baffle. Put new baffle inside Cobra baffle. Drilled two holes matching the new baffle. Inserted and tightened allen bolts in new baffle.

Reinstalled everything and cranked her up.

Here are the before/after decibels.

At idle when cold 8" from pipe end.
108/100

At idle when warm 8" from pipe end.
100/89

At around 4000 rpm's 8" from pipe end.
127/120

At around 4000 rpm's on the rear seat
111/103

So it helped a decent amount. But the real advantage is the tone change. Before the tone was a bit high pitched which when coupled with the higher volume gave me a bad headache. Now the tone is a lot lower and with the reduced volume no more headaches yet

And the power seems to be exactly the same, no difference.

Now back to riding.
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