How to Measure Head-Pipe Diameter
WHY MEASURE FOR 4″ UNIVERSAL FIT MUFFLERS?
By knowing the outside diameter size of your head-pipe, you can select the correct size muffler inlet / adapter, and ensure a correct and easy muffler installation. Please see guide.
How to Measure Head-Pipe Diameter
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WILL A TAILGUNNER™ FIT MY BIKE?
We make a direct bolt on mufflers for all Harley Touring models, Indian Touring models, Indian Scouts and the Indian Chief line. Everything is included for you to perform a quick, effortless installation and easy to follow directions are included. We also offer custom, universal fit models for everything else. All universal
models include a support bracket on the backside of each model. Tailgunner®
universal fit models are a simple installation on many bikes. With others a certain
amount of modification, such is required. This is an expected and enjoyable part
of custom motorcycle building. Tailgunners® are mounted on everything from
stock Harley-Davidsons, metric cruisers, sport bikes and autos and trucks and
will slip-fit onto most after-market exhaust systems as well.
ARE THE BAFFLES REMOVABLE?
WHAT IS THE INLET SIZE OF THE UNIVERSAL MODELS?
The universal Tailgunners® will slip fit onto any exhaust pipe from 1.5″ through
3” diameter. The overall diameter of the mufflers are 4″.
HOW FAST DO THE BARRELS SPIN?
WILL THE BEARINGS LAST IN THE HOT, CARBON ENVIRONMENT?
Tailgunner® exhaust uses the highest quality American shielded radial bearings in each model. They are designed to resist heat and corrosion. To ensure smooth, even rotation of your rotary cannon exhaust barrel assemblies it is occasionally necessary to spray the bearings using WD-40. It is a very easy process and instructions are included. Basically point ands shoot 🙂 If lubricated regularly you will get 80-100 thousand miles on a set. All mu
CAN YOU RUN BOTH PIPES OF A BIKE THROUGH ONE TAIL GUNNER EXHAUST?
Yes. A two into one is an easy installation and provides the best performance gains. It’s popular with our Universal fit mufflers.
HOW MUCH RESTRICTION DO I GET WITH A TAILGUNNER®?
Tailgunners flow 4 to 6 times more exhaust than a stock muffler system. They are designed to allow your exhaust to flow as efficiently as possible. They are an extremely free flowing slip on.
WHAT KIND OF PERFORMANCE INCREASE CAN I EXPECT?
When properly tuned you will enjoy a moderate increase in both horsepower and torque. Generally in the neighborhood of 4 to 6 lbs of horsepower and torque.
HOW MUCH BACK-PRESSURE?
Tailgunner® slip-ons are designed to be as non-restrictive (free flowing) as possible while giving you a deep, throaty sound. The most noticeable changes with a Tailgunner® are the improved sound, styling, weight reduction and a extra horse power and torque.
WHAT DO THEY SOUND LIKE?
A very deep, low, throaty, big bike sound is the best description. These models come stock with straight through, fiberglass packed baffles and have a 2.5″ core. They are also available un-baffled. The universal models are loud, deep and throaty. Please listen to the universal audio file or video on the website.
WHAT ARE THEY MADE OF?
Our housings are made of either 16-gauge steel or stainless steel depending on the model. All units are chromed to perfection, or with a high temp black coating. The barrel assembly and turbines are a combination of stainless steel and brushed aluminum. All hardware is stainless steel. Every Tailgunner® is made in America. Beware of cheap foreign imitations.
WHERE ARE TAILGUNNERS® MADE?
Tailgunner® Exhaust manufactures and assembles all of its products in West Tisbury, MA, United States. We believe this is the best way to ensure our products quality.
HOW DO I MEASURE THE OUTSIDE DIAMETER OF MY EXHAUST / HEADER PIPE?
Universal 4″ Tailgunners are a slip fit installation. This means the pipe slips on OVER your existing exhaust / head pipe. For an accurate measurement remove the current muffler and any heat shields so the end of the exhaust pipe is exposed. Simply measure the pipe opening from outside top to outside bottom or left to right. Remember, you are measuring the outside diameter as Tailgunner models slip over the existing exhaust pipe. Please see the “universal adapter instructions.”