XR400 Exhaust.

misterdeelin · Posted: Thu Jul 23, 2009 2:35 pm Post subject: XR400 Exhaust.

Okay slackers, need some guidance.

My exhaust is really loud, and i'd like to quiet-en it down a little.
I removed the chrome tip last night and found that its been cut.

I bought a used diffuser, i'm having trouble fitting it in.
I think the circular shape is a little off, so it won't slide in nicely.

I dont see a lot of XR4s with their diffuser on, but they don't sound
ridiculously loud. So i'm guessing its got something to do with the chrome
insert? Cuz like i said, mine looks like its cut, nice and free flowing.

I don't know which would be the stock insert, 4 or 5.
The red line is where mine looks like its cut.
Possible to buy this from places like FJT? Any idea what the damage is?

seacsub · Posted: Thu Jul 23, 2009 5:48 pm Post subject: Re: XR400 Exhaust.

80 bucks ar there. Plus i used to use a dut off rxz silencer aka diffuser trimmed to that length. Not much sound though. Shouldnt be a problem if its roughly the same length.

but if ur referring to the whole tip. the chrome tip behind kena cut. best ask fjt sales person for info, or ur local xr4 specialise mech, cheers.

mxriderx03 · Posted: Thu Jul 23, 2009 5:52 pm Post subject: Re: XR400 Exhaust.

it shuld be the NO.4...but remember loud pipes saves lives....heheh....

seacsub · Posted: Thu Jul 23, 2009 6:12 pm Post subject: Re: XR400 Exhaust.

go fjt and ask la. taking cares

huzair · SR Bronze Member Joined: 21-Mar-2006 Posts: 612

could it be ur header is oversized

misterdeelin · Posted: Thu Jul 23, 2009 9:12 pm Post subject: Re: XR400 Exhaust.

the header is stock, i believe. =)
I'm gonna try fitting the diffuser in and see how it sounds.
is it going to run different with a diffuser in?
would i need to readjust the carb?
or even re jet it?

Replay · Posted: Fri Jul 24, 2009 6:13 am Post subject: Re: XR400 Exhaust.

lol.. mine also was cut.. the wire mesh cut, the diffuser also kena cut.. recently just replace the diffuser.. my ride is now more smooth.. =D

mxriderx03 · Posted: Sat Jul 25, 2009 10:32 am Post subject: Re: XR400 Exhaust.

well i heard it does cut dwn on the noise n fuel consumtion,bt then u will lose out on the power.

inoymfb · Posted: Sat Jul 25, 2009 1:20 pm Post subject: Re: XR400 Exhaust.

Hi guys! Erm... where's FJT at? Sorry man, kinda noob here but currently my XR4 sounds ridiculously loud and wished to do something about it. Thanks a mil y'all! (:

mxriderx03 · Posted: Sat Jul 25, 2009 5:18 pm Post subject: Re: XR400 Exhaust.

its near ah boy...rowell road

Freeze! · Posted: Sun Jul 26, 2009 3:19 am Post subject: Re: XR400 Exhaust.

inoymfb wrote:

Hi guys! Erm... where's FJT at? Sorry man, kinda noob here but currently my XR4 sounds ridiculously loud and wished to do something about it. Thanks a mil y'all! (:

Loud pipes save lives.............Quiet pipes save money Mr. Green

misterdeelin · Posted: Sun Jul 26, 2009 5:37 pm Post subject: Re: XR400 Exhaust.

Freeze! wrote:

inoymfb wrote:

Hi guys! Erm... where's FJT at? Sorry man, kinda noob here but currently my XR4 sounds ridiculously loud and wished to do something about it. Thanks a mil y'all! (:

Loud pipes save lives.............Quiet pipes save money Mr. Green

Your money or your life!

Replay · Posted: Mon Jul 27, 2009 1:36 pm Post subject: Re: XR400 Exhaust.

mxriderx03 wrote:

well i heard it does cut dwn on the noise n fuel consumtion,bt then u will lose out on the power.

yeah thats what i heard too.. i've got on the stock diffuser now, the ride is more smooth, power wise a little bit less responsive i guess..

misterdeelin · Posted: Mon Jul 27, 2009 10:13 pm Post subject: Re: XR400 Exhaust.

does the diffuser slide into the tip nicely?
easy to bolt in? cuz mine need to hammer in.
even then, it wont go in far enough to put the bolts in.
and then taking it back out is a bigger pain.

willy21 · SR Rider Joined: 04-Dec-2008 Posts: 75 Location: singapore

i also need to hammer it in..and to take it out is a pain in the a**...