KLX 300 header pipe
Senior Member
Joined: Dec 2006
Posts: 218
1st Gear Member
A larger header such as a FSW or others will be much better than the stock 300 header, especially if you are going to a 300 or 331. I have tried the stock 300 header vs the FSW header with a 250, 300, and a 331. The FSW header makes a worth wile noticeable difference in all three.
Member
1st Gear Member
Joined: Jul 2012
Posts: 32
From: Boundary/Kootenay, BC
300 header and muffler on 250? sizing?
I know I have said this many times before. The biggest performance bang for the $ is a FSW header and a stock KLX300 exhaust with the but plug removed and a turn down tip. Should cost less than $200.00. The header Does make a difference. It is a very good set up that I ran for quite a while before going to a full FSW system. It is not overly loud, quite pleasant as long as you have the turn down tip. It is much quieter than my buddies FSW header/FMF exhaust combo and my FSW full system is quieter than his. I also have a quiet tip that I have never used. Another advantage is the 300 exhaust will never require re-packing. The aftermarket systems are much lighter, look cool, and require maintenance. I have not heard the FMF Q4 but it may be quieter than a stock KLX300 exhaust with a turn down tip. As with any exhaust upgrade it is important to do all the "free mods" and properly jet the bike.
Hey guys, sorry to resurrect an old thread but I have been reading several threads on different forums on the topic an my head is spining. I'm also new to all this so please bear with me....
Does an FSW 300 header bolt onto a 250 (mine a 2010) with no problems?
In a setup of an FSW with a stock 300 muffler, does it bolt onto the 250 with no problems? I've heard some people talk about length issues.
Is the turn down tip that is being recomended, what is that?
Currently I'm gonna try playing with my current 250 exhaust until I have money to do something else. I was gonna cut that small but plug out and stick a HMF end cap on for looks. I'm hoping that will let it beathe better. I know its not the best to do, but until I have the money.....
Thanks
Senior Member
Joined: Jul 2010
Posts: 1,414
From: Missouri
1st Gear Member
The outlet connection size is different as well ?
So length and outlet size are both incompatible with the 250 muffler ? Just want to make sure i've got the facts straight.
So length and outlet size are both incompatible with the 250 muffler ? Just want to make sure i've got the facts straight.
