Two Brothers Racing Kawasaki ZX-9R User Manual

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Kawasaki ZX-9R (1998-03)
Flange-On Exhaust System

Parts List

We recommend that this performance exhaust system

be installed by a qualified motorcycle technician. If you
have any doubts as to your ability to install this exhaust
system, please consult with your local motorcycle deal-
er. Read all instructions first before starting installation.
Make sure the motorcycle and exhaust system are com-
pletely cool before starting the installation. Also, make
sure the bike is secure on the sidestand or ideally a rear
service stand during installation. Be sure to save all
stock exhaust components for possible use later.

1. Make sure the bike is completely cool before starting the

installation. Make sure the bike is secure on the side-
stand or ideally a rear service stand.

2. Remove the flange cover at the front of the canister by

unscrewing two allen head bolts that are found inside
holes in the cover. You will re-use this cover later.

3. Remove the nuts holding the stock canister onto the

flange. Loosen the hardware that holds the canister to
the passenger footpeg and remove the canister from the
bike.

4. If your bike has the pipe extending past the flange you

will need to trim it. This will not affect refitting the stock
canister if you ever need to. Be sure to measure twice
and cut once!
Typically you can leave 1/2” of pipe
extending past the flange face.

5. Install the canister onto the end of the stock exhaust

flange (the TBR badge faces to the outside). You’ll have
to hold it in place while you start the bolts (8mm x 25mm)
through the flange holes and into the inlet. Go ahead and
tighten evenly and fully.

6. Install the TL bracket to the passenger footpeg bracket

using the stock hardware. The 10mm hole goes to the
passenger footpeg bracket. The bracket should point
backward and down toward the canister. Leave loose for
now.

7. Carefully slide the canister clamp over the canister.

(Note: The stainless steel canister clamp and the name
badge on the canister come from the factory with a clear
plastic protective film. Please remove this film before
operation.)
Locate both tabs of the canister clamp on the
outside of the TL bracket. Use the 8mm x 20mm bolt,
washer and nut to secure it. Leave loose for now.

8. Make sure everything is aligned and tighten all hardware.

9. Reinstall the flange cover.

10. Before you run the bike, clean off all fingerprints and dirt,

as any oily residue will etch the metal and become some-
what 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/manufac-
turing oil from inside the pipe burning off. Check for gaps
or leaks. If you find a leak, a little high temperature silicon
sealant should fix it. After 50 to 100 miles, recheck all
fasteners for tightness.

IMPORTANT - PLEASE READ CAREFULLY

ZX-9R Flange-On Instructions.qxd

Flange Detail

Installation Instructions

1/2”

Care & Cleaning
Keep system free of dirt and moisture. Store in a cool, dry place. For cleaning use a
mild spray cleaner. Always apply cleaner or polish with a soft, clean cloth.
Stainless Header System: Polished stainless steel pipes will turn a light golden hue
after a few heat cycles, this is a normal characteristic of high quality stainless steel.
Carbon Fiber & X-Metal Mufflers: X-Metal CF canisters will shift color from their
original silver color to an amber color after a few heat cycles, similar to the way our
stainless steel headers shift color. Always make sure the fiberglass packing inside is
in good condition and not burned out, as exhaust heat inside an empty canister will
deteriorate the Carbon Fiber / X-Metal CF sleeve. TBR sells repack kits (TBR part #
005-10038) that include new rivets and repack material as well as a drill bit (#30),
making it easy to do yourself. Also, NEVER dyno test your bike with carbon fiber muf-
flers installed - the intense heat and lack of cooling air can quickly cause the CF
material to burn. Two Brothers Racing does not provide a warranty for burned carbon
fiber.
Aluminum Mufflers: Use an aluminum or mag wheel polish such as Mother’s to
restore the bright finish to factory spec.

Warranty
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 dis-
claims all responsibility for consequential and incidental damages or any other losses
arising from the use of these products or parts.

Care & Cleaning / Warranty

Front

8mm hole

10mm hole

QTY.

DESCRIPTION

PART NUMBER

1

C4 MUFFLER (17.5”, RIGHT SIDE, FLANGE # E091)

-

1

C4 MUFFLER CLAMP

VARIES

3

8MM X 25MM FLANGE BOLTS

005-FB825

1

MUFFLER HANGER BRACKET (WITH 8MM & 10MM HOLES)

005-69B

1

8MM X 20MM SOCKET HEAD CAP SCREWS

005-SH820

1

8MM NYLOCK NUT

005-NN8

2

8MM WASHERS

005-WF8

2

TWO BROTHERS RACING STICKERS

015-10197

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