Are you frustrated having
to choose between quality sound and power? The answer you and countless
others have been looking for has been answered with the introduction
of Thunder Monster baffles.
The latest innovations from Big City Thunder are our patented and
trademarked exhaust enhancing baffles that deliver not only a deeper
sound but also improved performance over a standard baffle or unbaffled
pipes. While standard baffles deal somewhat with the issues of
exhaust flow, back pressure, sonic and thermal pulses, etc. they
generally return less than desirable results, particularly in the
area of sound. While removing or cutting the baffles in length
may seem to produce more sound it is usually not a deep, crisp,
sound but a higher, blatty, brassy sound. Also when baffles are
removed or cut down the midrange performance and torque can suffer.
Cutting the baffles can also create a throttle hesitation which
is a symptom of fuel standoff. Trying to compensate by tuning the
carburetor /mapping the fuel injection, or adding more cubic inches
will not remedy these issues.
Our original Thunder Monster baffles are designed to deal with
the sonic and thermal pulses, deliver the correct amount of back
pressure, and act as a superior anti reversion device. They also
create a deep, clear, hot rod, throaty rumble. Our new QQ
Thunder Monster baffles deliver a slightly quieter more subtle sound than
our Original Thunder Monster baffles with a deeper, throatier tone.
Our Original Thunder Monster baffles are designed to fit exhaust
pipes with an inside diameter of 1 5/8", 1 3/4", 1 7/8",
2", or 2 1/8" that have removable baffles, straight pipes
with no baffles, and Screamin’ Eagle
II Slip Fit Mufflers with
removable baffles that measure 2 7/8” diameter x 11 ¼” in length.
We also offer our patented 1 5/8” Thunder Monster baffles for head
pipe installations for gutted mufflers or mufflers with a removable
baffle.
Our new QQ Thunder Monster baffles are
available for pipes with an inside diameter of 1 5/8", 1 3/4", 1 7/8”, 2” and 2
1/8”. Additionally we now have Thunder Monster baffles for certain Screamin’
Eagle Street Performance Mufflers. For Bagger applications
your Screamin Eagle Street Performance baffle should measure 3
3/8” diameter by approx 26 1/4” in length. For Softail applications
(with minor modifications these will fit Sportster and Dyna applications
as well) your Screamin’ Eagle Street Performance baffle should
measure 3 1/8” diameter by approx 17 3/4" in
length. (Please visit our Products & Fit page for more information.)
In most applications Big City Thunder products install in minutes,
provided your pipes have existing holes in the proper location.
Drilling a new hole takes a little longer.
Our products are designed, tested and produced with uncompromising
quality to provide superb sound and wicked midrange power in a
bolt-in product. Independent dyno tests resulted in 12 HP and 14
ft. lbs more torque than a straight pipe with no baffle. We're
talking torque power, not talk power! When tests were run replacing
standard baffles with no other modifications, there was an increase
in power and the sound quality was substantial. In addition to
more power and torque, Big City Thunder products normally eliminate
throttle hesitation associated with baffle removal and reduced
the RPM drop when shifting gears. If you have cut your baffles
and are not pleased with the results, our Original Thunder Monster
baffles will deliver a clearer, crisper and deeper, hot rod sound
with improved performance. Our new QQ Thunder Monster baffles are
designed to deliver improved performance as well as a more subtle
deeper tone to the exhaust note.
More good news. Big City Thunder Exhaust Products are available
for both American and Metric bikes and certain automotive applications.
This is an opportunity to get serious sound and power at affordable
prices. PLEASE NOTE: Before contacting us, please measure all of
the following:
- The outside diameter of your pipes with any tip or end
cap removed (Do Not
measure the heat shields.
- The inside diameter of your pipes
- The outside diameter of your baffles, if you have one
Please be sure to provide that information in your e-mail or when
you call.
Our Mission
Big City Thunder is dedicated to providing precision engineered
American made products of uncompromising quality to the motorcycle
industry.
To remain the world leader in value and performance.
Customer satisfaction is the passion driving our success.
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