Performance Exhaust choices and considerations.

Thread Tools
 
Search this Thread
 
  #41  
Old 08-24-2021, 10:02 PM
tooter's Avatar
Senior Member
1st Gear Member
Join Date: Mar 2021
Location: Rural Unincorporated Los Angeles County
Posts: 459
Default

Originally Posted by Davedottcom
I'm trying to confirm which year (part numbers) for the KLX 300R exhaust and muffler that will fit my 2018 KLX 250 (which is now a 300 motor)
The frames look so different, it doesn't look like the 2021 300R muffler would bolt-up to the 2018 frame but I can't tell from these diagrams.
Can anyone confirm which year 300R exhaust & muffler will fit correctly on a 2018 250 frame?
Thanks in advance!
Dave

2021 KLX300R Muffler



2021 KLX 300R frame vs. 2018 KLX 250 frame
Found an article that might help you...

2020 KLX300R Muffler

The midpipes for slip on exhausts are the same for all KLX 250's and 300's from 2009 to 2021 because the headpipes are all the same. The only possible issue might be the mounting points for the R muffler.



The rear of KLX300R frames is different from the Dual Sport and the Supermoto frames because the rear fender assemblies are different to allow for mounting rear taillight, blinkers, and license plate holders.
 

Last edited by tooter; 08-24-2021 at 10:11 PM.
  #42  
Old 12-14-2021, 12:51 AM
michael w's Avatar
Junior Member
Join Date: Dec 2021
Posts: 1
Default Exhaust

What header; exhaust and jetting do you rec for a 2012 klx 250
 
  #43  
Old 12-14-2021, 03:45 PM
tooter's Avatar
Senior Member
1st Gear Member
Join Date: Mar 2021
Location: Rural Unincorporated Los Angeles County
Posts: 459
Default

Originally Posted by michael w
What header; exhaust and jetting do you rec for a 2012 klx 250
Welcome to the forum.

Delkevic is the best bang for your buck.




The jetting is up to your discretion.. Mine is fuel injected and I just ride around normal in closed loop. I also like the FMF Megabomb header, but the engine still runs just fine without it.


 
  #44  
Old 06-04-2022, 04:46 PM
wozzz's Avatar
Junior Member
Join Date: Jun 2022
Posts: 5
Default muffler interior help please

Hello. make you can help me out with my KLX 250 stock muffler. I had to cut a hole into it to take out a piece that was loose and clanking inside like hell. closed it back again by welding. now I miss the noise it had before since the piece that I extractes was this pierced pipe with a sleeve around it. so im considering opening it up again and welding the piece back in, since it is in good shape. only the attachment points rusted and that's whay it fell off.

the question is whether that piece goes attached to the pipe coming into the muffler or if it goes welded to the pipe coming out of it toward the tail opening. I'm attaching a picture of the part I don't know where to weld. I need to know in order to decide where Im cutting open the muffler to drop and weld it

THX!


 
  #45  
Old 08-16-2023, 12:41 AM
Hutchie's Avatar
Member
1st Gear Member
Join Date: Oct 2021
Posts: 35
Default FMF Q4 Melting Question

Hello Forum,

I have a 2023 KLX 300. I’m getting a FMF Q4 slip on pipe installed as soon as it arrives … I just thought if something though. Will it melt my rear blinker?

Thank you.
 
  #46  
Old 04-02-2024, 10:04 AM
tsc's Avatar
tsc
tsc is offline
Member
1st Gear Member
Join Date: Sep 2023
Posts: 49
Default

Hey folks. What's the diameter of performance header like FMF or barker? Stock header outer diameter is 33mm (1.3inch).
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
xcrcarpenter
KLX 250S
45
06-20-2017 05:29 AM
Klxster
KLX 250S
8
10-17-2016 12:10 AM
Tin
KLX 250S
6
07-14-2015 10:11 AM
MikeW
KLX 250S
25
11-15-2014 07:21 PM
Klxster
KLX 250S
9
04-02-2014 01:40 AM



Quick Reply: Performance Exhaust choices and considerations.



All times are GMT. The time now is 05:27 PM.