I want to upgrade my exhaust help - Kawasaki KLR 650 Forum
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post #1 of 3 Old 08-08-2015, 06:36 AM Thread Starter
greerdn's Avatar
Join Date: Jun 2015
Posts: 10
I want to upgrade my exhaust help

Hi everyone, I have been reading a lot on here about upgrading exhaust; I still do not have a solid grip on the "JETTING" side of it. So I get a new aftermarket exhaust, and if its a slip on the I don't have to change the header right? Do I NEED to "JET" if I get a new slip on exhaust?

My KLR650 is a 2015 and I just don't care for the current exhaust...if it was YOUR 2015 KLR650 with 300 miles, what would you do with the exhaust and why?
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post #2 of 3 Old 08-08-2015, 07:10 AM
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Join Date: Apr 2011
Location: Kansas
Posts: 1,205
You don't HAVE to rejet with an aftermarket muffler, but I would highly rec doing the .22 mod if you do the frugal exhaust mod or if you install a new muffler.
I installed the LEXX muffler onto the stock header. She is still working great!

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Last edited by Savage; 08-08-2015 at 07:14 AM.
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post #3 of 3 Old 08-08-2015, 07:38 PM
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Join Date: May 2009
Location: Indiana/ Michigan line at the Lake
Posts: 1,585
Stock jetting is fine.
The EPA tests at idle and cruise. This means turning out the idle mixture screw
a half turn, and raising the metering needle (.22 mod) with one or two #4 brass washers.

I did those two things and cored the stock muffler. Stock modified is the theme the Cheapster

This is my son, with whom I am well pleased." ----God
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