Jim,
I'm with Jeff.
I did a "tweetyectomy" on my 09's OEM muffler and the sound is healthy
(deeper) being intrusive.
One of the owners of a local bike shop compliments the resulting sound
whenever I am over there.
Figuring they've heard many-many bikes, I count it as qualified praise.

I opted to bolt on a replacement sport bike muffler outlet I bought online
vs. the welding.{photos offline by request}
Figure in the cost of a good bimetal hole saw on top of that and I'm in it
for around $50.
eddie
transalp1@...
> [Original Message]
> From: Jeff Khoury
> To: Jim Douglas
> Cc: DSN _KLR650 DSN_KLR650@yahoogroups.com>
> Date: 6/24/2011 11:35:17 AM
> Subject: Re: [DSN_KLR650] Exhaust Question
>
> If you do it right, a fairly easy mod to the stock exhaust sounds best to
my ear. It makes it about 5db louder and a TON deeper.
>> It cost me $35.98 total, including the tools I had to buy and paying a
muffler shop 20 bucks to do the welding for me.
>> You may be different, but I like my bikes to sound "athletic" but not
loud.
>> -Jeff Khoury
>>
>
> I watched this video while clicking around on the web and loved the
> sound of this Triumph Scrambler.
>
> My question is that is there a pipe for the KLR (2008) that would
> sound like this. Not meaning to start a loud pipe thread and I
> didn't think this was all that loud, just nice to me?
>
> Thanks!
> Jim
>
>
http://www.youtube.com/watch?v=d7r43nfESek