We have teamed up with Feuling® Parts to bring you the ultimate in V-Twin Performance Exhaust. Over a year in the making and countless hours spent on design and in the Dyno room, we bring you the all new THRASHIN® Anti-Reversion™ Exhaust system!
The Thrashin® 2>1 Anti-Reversion™ Exhaust system has equalength stepped headpipes with Jim Feuling's patented design anti-reversion™ 'AR' chambers™ (Patent # US 4206600 A & 6336471 B1), transition merge collector (Patent # 4,796,426) and optional perforated 'dog ball' muffler core (Patent #5,173,576). These technologies promote continuous exhaust gas flow, reducing 'reversionary' pressure waves or 'unwanted' exhaust pollution of the intake charge and combustion chamber, providing increased engine performance and efficiency.
This true performance stainless steel pipe starts with square cut headpipe spigots which promote a smooth transition from the exhaust port to headpipe with a true .625" inside diameter. Eliminating the choked up transition and mushroomed gaskets common with most exhaust systems.
Jim Feuling's patented headpipe AR Chambers® are placed at the transition from 1 3/4" to 1 7/8". Our performance merge collector has a exit AR Chamber™ into the 2 1/2" muffler inlet. The optional 'Dog Ball' baffle absorbs high pitch frequencies, producing a unique deep tone while minimizing the effects to column inertia through the muffler. All Thrashin® baffles are wrapped in replaceable stainless steel wool and high temperature fiberglass, providing extended life packing while minimizing muffler discoloration. The exhaust exit is capped off with optional styles of reverse end cones and ID sizing to meet your engines demands and personal sound preference.
These combined features reduce gas flow resistance, back pressure and aid in the elimination of reversionary effect. DESIGNED AND MADE IN AMERICA.
Thrashin® recommends using square cut or crush ring exhaust gaskets and having your motorcycle properly tuned for best overall performance and pipe longevity.
THRASHIN DEEP TONE MUFFLER BAFFLES
6 removable baffle styles to choose from: the Feuling 'Dog Ball' or straight through perforated
The ‘Dog Ball’ resonator insert minimizes the 'drone' / ‘hollow’ sound common with straight through mufflers. These baffles produce excellent under load mid range torque and a signature higher RPM note. (Jim Feuling Patent #5,173,576)
Straight through perforated baffles are high flow and produce an aggressive to very aggressive sound.
2 1/4" perforated Feuling 'Dog Ball" baffle Part # TSC-1954-0
Best suited for stock to mild bolt-in cam 80"-96" engines and stock 103" engines. Good low and mid range torque, especially under load. Deep smooth tone with signature 'Dog Ball' higher RPM note. Recommended for use with 2 3/4” ID end cap.
MODERATE TO AGGRESSIVE SOUND
2 1/4" stepped to 2 1/2" perforated Feuling 'Dog Ball' baffle Part # TSC-1960-0
Designed for smaller cubic inch performance engines, the 2 1/4" inlet delivers good low end torque and the step up to 2.5 allows the engine to breathe at higher RPM. This baffle has an aggressive crisp and snappy sound with the signature 'Dog Ball' higher RPM note.
Thrashin & Feuling sound favorite combined with the 2 3/4" ID end cap.
AGGRESSIVE SMOOTH SOUND
2 1/2" perforated Feuling 'Dog Ball' baffle Part # TSC-1955-0
Designed for larger cubic inch and high performance engines, the 2 1/2" inlet to exit allows the engine to breathe at all RPM, combined with larger cubic inch and or compression allows this baffle to produce good low end torque and higher RPM power. This baffle has a deep smooth and snappy sound with the signature 'Dog Ball' higher RPM note. Will work well with either 2 3/4” or 3” ID end cap, the 3” end cap is louder and has the ability to produce more peak power.
2 1/4" straight through perforated core Part # TSC-1951-0
Best suited for mild performance and or larger cubic inch engines looking for higher RPM power and or a louder more aggressive sound. This core out flows the 2 1/4 Dog Ball baffle. Smaller engines may sacrifice some low end throttle response.
AGGRESSIVE TO VERY AGGRESSIVE SOUND
2 1/2" stepped to 2 3/4“ perforated Feuling 'Dog Ball' baffle Part # TSC-1961-0
Designed for larger cubic inch high performance engines, this baffle has a 2 1/2” inlet stepped to 2 3/4” with a reduced exit to 2 1/2”. This is a high flow baffle that produces superior low/mid range torque without sacrificing top end power. Aggressive crisp and snappy sound with the signature 'Dog Ball' higher RPM note.
Thrashin & Feuling sound favorite combined with the 3" ID end cap.
VERY AGGRESSIVE SOUND
2 1/2" straight through perforated core Part # TSC-1952-0
Designed for high performance and larger cubic inch engines looking for a very aggressive sound, this is a high flow baffle best suited for the 3” ID end cap.
THRASHIN END CAPS
2 options of our end caps to choose from.
1.) Tapered style End Cap #TSC-1211
2.) Standard Cone style End Cap #TSC-1210
NOTE: Some of THRASHIN SUPPLIY's products: namely exhaust systems ARE NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. The following disclaimer is associated with these THRASHIN products.
DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES
The words FEULING®, FEULING® PARTS, AR CHAMBER™ and ANTI-REVERSION™ are brand and trade names of Feuling® Parts and are licensed for use with Thrashin® Supply Co.
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