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Two Brothers Slip-On Exhaust for Hyosung GT650R (2005-08)The M-2 Slip-On exhaust canisters feature the highest level of quality
construction and are designed to be fully serviceable in the event of
damage, routine maintenance or the occasional repack. Two Brothers
Racing’s M series spring-mounted slip-on canisters all feature patented
and exclusive lightweight thinwall die cast aluminum one-piece inlets.
The exhaust note produced by all Two Brothers Top Level exhaust systems
is best described as being deep and throaty without suffering from the
shrill whine normally associated with other manufacturer’s straight
through muffler canisters.
This canister bolts to your existing exhaust system directly replacing
your stock muffler. You retain your original headers and “s-bend” pipe.
This configuration not only adds horsepower but also can drop
significant weight from your bike. Reinstallation of the stock muffler,
should the need ever arise, is very simple. This type of canister can
only be mounted in the original canister position regardless of the
bike.
Features:
- Small, vertical, oval canister (4.85”H x 3.75”W) is available with
an aluminum high-polish finish, black carbon fiber (filament wound) or
natural titanium matte-grey color
- 2.25” stainless steel, power core
- Packing consists of a first stage (stainless steel wool) and a second stage (high-temperature fiberglass)
- Comes with a billet, anodized, aluminum-inlet endcap
- Teflon coated, die-cast, magnesium-outlet endcap
Polished Aluminum
- Aluminum is a lightweight and strong material used extensively in
the aerospace, automotive, and of course, motorcycle industries.
Aluminum is a wise choice due to its excellent strength to weight ratio,
corrosion resistance, and clean look. We use lightweight thin-wall
.060” extruded 6061 aluminum alloy that is heat treated to a T-6
condition for increased strength, durability, hardness, and finish hold.
After the aluminum has been heat treated, it is cut to length and
given a mirror polished finish. Ounce for ounce, aluminum is the best
value of all the M and C series mufflers. As a rule the aluminum
mufflers weigh about 8.3oz. more than Titanium or Carbon Fiber mufflers.
Carbon Fiber
- Two Brothers has been using Carbon Fiber in motorcycle mufflers
since 1992. They are currently the only US Company to exclusively use
Filament Wound Carbon Fiber (FWCF) on every carbon fiber muffler they
sell. They draw on only the best high temperature resins, and control a
proprietary lining system adopted from spacecraft, for additional heat
resistance. The FWCF is continuously wound over a precision machined
mandrel for a 100% seamless bond. The FWCF tube is then cured in a high
temperature autoclave oven for superior strength and heat resistance.
These crucial elements meld to form a precision lightweight muffler that
will perform as well as it looks.
Titanium
- By weight titanium is one of the world’s strongest readily available
metals, making it ideal for the M series mufflers. It is 45% lighter
than steel with comparable strength, and twice as strong as aluminum
while being only 60% heavier. That’s right, titanium is HEAVIER than
aluminum, but since it is twice as strong they are able to use very thin
(.024”) material to construct the Titanium muffler. The result is a
muffler that is about 8.30z lighter than the M or C series aluminum
mufflers. Titanium has become an industry standard for motorcycle
mufflers due to its durability, corrosion resistance, light weight, and
factory look.
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Exhaust 
