2003 z400 exhaust
 

I was recently told that i could take the baffle out of the exhaust pipe of my 2003 z400 to get a little more power. Is this true and if so how is this done.

2003 z400 exhaust
 

just remove the screws on the end cap and it should come apart
and welcome to the forums

2003 z400 exhaust
 

will this ruin my quad in any way??

2003 z400 exhaust
 

No, it will give it more sound and a little boost in power, uncorked this bike runs pretty good in stock form.

2003 z400 exhaust
 

Go with the above mentioned!!

2003 z400 exhaust
 

IMHO i would bump up the jetting ,remove the air box lid and the end cap,go to a 142 main. you may need to adjust the fuel screw if theres any bog .
i suspect this should give ya may be 3 hp,

2003 z400 exhaust
 

When i took the end cap off there was just a screen in the shape of a cylinder attatched...do i take that off??