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2005 BCR Laser Db Killer Question. Is it still in...

...thats what she said.


Just Kidding. I cant tell for sure if my Laser exhaust on my Boxer Cup Replica Still has the Db killers in. Can someone who has removed theirs take a look at my pic. Thanks, id hate to destroy something if it should not be removed.

Ben


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Old 02-23-2010, 02:00 PM
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i cant tell, but it looks like they either aren't in, or they have been cut way down.
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Old 02-23-2010, 05:37 PM
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They're still in there. You can tell by the little step just inside each opening and you can see they extend about 2 1/2 inches in with a smaller diameter. But the most tell-tale sign is there's no hole at the bottom of each tube where the spot weld would be drilled out.

To take them out use a 5/16 inch drill, find the spot weld, and drill it out. Then put some penetrating oil around the edge, not wd40, something good. Wait a while then stick a broom handle or dowel in there and work them side-to-side and up and down until they loosen and come out. Some come out easy, some don't. Mine didn't. By the time I got them out they were almost unrecognizable from the slide hammer treatment.
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Last edited by tm1100s; 02-24-2010 at 06:37 AM..
Old 02-23-2010, 06:51 PM
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Old 02-23-2010, 07:01 PM
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I see the spot welds now. Thanks a million

Ben
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Old 02-24-2010, 05:55 AM
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Could I assume with them out there will be an increase in flow and HP or just more sound?
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Old 02-24-2010, 04:51 PM
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Yes, more hp.

Stock HP x 2 pipes - 2 dbkillers = ??????
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Old 02-24-2010, 06:40 PM
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Expect at least a 5 rwhp gain!
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Old 02-25-2010, 11:55 AM
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Seriously 5HP by just taking those suckers out, humm any chance of really doing damage to the pipes? Is that a dyno RWHP or just seat of the pants guesstimate.
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Old 02-25-2010, 03:39 PM
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my guess is he's kidding
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Old 02-25-2010, 03:41 PM
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he's kidding. if you want to gain 5 RWHP then replace the stock header with the cat free Laser unit.
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Old 02-25-2010, 03:49 PM
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That was the first thing I did for sure. Just purchased a air fuel ratio data logger. As soon as I can get the O2 bung on I can dial it in more. I know, dyno but I like doing stuff myself and having something left over in my tool box. I already like the tone of the BCP w/o the cat so if it will not flow better I dont need more DBs. I can get those from the duck.
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Old 02-25-2010, 07:34 PM
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I'm not worried about power I know it doesn't come that easy(good rule of thumb: each hp over stock=$100) how much more bark?
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Old 02-27-2010, 02:50 PM
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Quote:
Originally Posted by roadrash666 View Post
I'm not worried about power I know it doesn't come that easy(good rule of thumb: each hp over stock=$100) how much more bark?
it's exponential, not linear..
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Old 02-27-2010, 02:55 PM
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i just pulled the db killers out of the mufflers on my 05 bcr and didn't notice a whole lot of difference in the sound. The bike did start easier and idled a whole lot better though, I have to say that alone made it worth the effort to get those bastards out. It was kind of a pain in the ass(I too had to resort to a slide hammer)we'll see how it runs when I ride later in the week. Temps are supposed to be in the mid 40s and I can't wait to get out
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Old 03-01-2010, 03:21 PM
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Interesting, better start and idle. I bet when you take her out and crank it on she is going to talk to you a bit louder. I might do it. I am just fearful of messing up the cans. I have 15K worth of sticking them in there.
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Old 03-01-2010, 05:24 PM
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The biggest improvement with the '05 Laser system is with the removal of the cat and insertion of the Laser Sport Collector (I think this is what they call it), or something similar to this. I was originally told that the db killers were a zero backpressure addition that changes the tone, not the flow. Changing the pipe, removing the dbk's and changing the chip made a very noticeable difference overall.
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Old 03-01-2010, 06:21 PM
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"worth the effort to get those bastards out. It was kind of a pain in the ass"

Yep. But agree... you lose the almost 'fluffy' sound at idle/low revs. I'd recommend it but be patient as it could take an hour or so of coaxing to get them out without damaging anything (suggest you remove the mufflers from the system and do it in the garage & not on he bike, as you could damage the rear bodywork)
Old 03-02-2010, 08:45 PM
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BMW Roundel Broom Handle

Greetings,

To Remove:
  • Drill out the 6pm spot weld completely
  • Insert broom handle and wiggle them out.

To reinstall use a small SS screw, lock washer and bolt.
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LASER Engineering Exhaust Systems
RapidBike USA
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Old 03-03-2010, 10:11 AM
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There is one more way. I did this....it takes a little more time. I used a die grinder and milled the spot weld from the inside so I would not have a hole. As described above will be easyer and a little hole at 6 oclock is no big deal. After all that I still was not happy and bought staintune.....I`m happy.

Lane

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Old 03-03-2010, 10:28 AM
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