MX / ATV Repack Kit
Installation Instructions
1. Make sure the bike is completely cool before starting
the installation. Make sure the bike is secure on a
centerstand or ideally a service lift and remove the
muffler assembly form the bike.
MX Re-pack Kits
Part # 005-10038MX
8. Roll new packing tightly over the wire mesh covered
perferated core and secure with tape on the packing.
2. Keep the S-bend tube attached to the muffler for
ease of removal when separating the inlet from the
outer sleeve.
3. Remove the 6 retaining screws holding the inlet to
the outer sleeve. Carbon and Titanium mufflers
have a stiffening band under the retaining bolts that
will be removed also.
9. Insert the new packed core into the muffler.
4. Pull the S-bend away while holding the outer sleeve
to separate them.
10.Replace the O-ring on the inlet if necessary.
5. Remove contents from inside the muffler core/
14.Re-install muffler to the motorcycle.
6. Separate old packing from core and disguard
Two Brothers Racing products are intended for closed course competition purposes only, and therefore are sold “as is”
without warranty. Two Brothers Racing specifically disclaims any warranties of merchantability or fitness for a particular
purpose and disclaims all responsibility for consequential and incidental damages or any other losses arising from the
use of these products or parts.
12.Install the 6 bolts to secure the outer sleeve with the
13.Torque the retaining bolts to 72in. lbs.
Repack all offroad canisters after every 10 hours of use. Part #005-10038MX
We recommend that this performance part be installed by a qualified
technician. If you have any doubts as to your ability to install this
performance part, please consult with your local motorcycle dealer.
Read all instructions first before starting installation. Make sure the
motorcycle and exhaust system are completely cool before starting the
installation. Also, make sure the bike is secure on a centerstand or ideally
a service lift during installation. Be sure to save all stock components for
possible use later.
11.Make sure the core goes into the core retainer on the
outlet and inlet as you slide them together.
7. Cut new packing to muffler length.
15.Before you run the bike, clean off all fingerprints and
dirt, as any oily residue will etch the metal and become
somewhat permanent when the system gets hot. Run
the bike and enjoy. It is normal for some white smoke
to appear the first time you start the bike. This is
packing/manufacturing oil from inside the pipe burning
off. Check for gaps or leaks. After 1 to 2 hours of riding
recheck all fasteners for tightness.
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