- Additional Information
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- The VaraFlow Muffler features a 2 1/2" inlet and outlet, a slim 4" body design and tight fitting servo motor making this muffler ideal for applications where space is at a premium.
- Electric motor and Valve assembly that allows the vehicle owner to adjust the sound of their exhaust, while they drive.
- The muffler body is 18" in length with a 24" overall length and features a free flowing 2 1/4" perforated core.
- The Patriot VaraFlow muffler comes complete with a simple two wire hookup with a shielded harness, illuminated control switch and wiring instructions for single or dual switch installations.
- Limited One Year Warranty
This new muffler features SFI Technology and utilizes an electric motor and valve assembly which allows the user to adjust the sound of their exhaust, while they drive. SFI stands for Sound Flow Inversion, Patriot's proprietary valve and baffle design which allows the user to redirect the flow of the exhaust to instantly change the volume and tone. The primary purpose for this design is not only to allow the driver to get the exact sound they are looking for but to also tune out annoying drones when driving down the highway and then have the option to make more noise on "Cruise Night". At idle the deference between open and closed positions is approximately 5 dB. At 5000 RPM the difference is closer to 15 dB. For reference, an increase of 10 dB. in sound is two times louder and an increase of 20 dB. is four times louder. The VaraFlow Muffler is made from corrosion resistant Stainless Steel and polished to a high luster. VaraFlow mufflers come complete with a simple two wire hookup in a shielded harness, illuminated control switch and wiring instructions for single or dual switch installations. Sold individually.
Download Instruction Manual
Emissions CodePerTronix Performance Ignition and Exhaust Brands use a voluntary product identification program whereby all emission sensitive products can be identified by placing numbered labels in product packaging and listing corresponding numeric codes next to each part number. The corresponding numbers and explanations are as follows:
This product has been granted a California Air Resources Board (CARB) Executive Order (EO Number) Exemption. It is 50 State Legal when installed on the appropriate vehicle per the Manufacturer’s Application Guide and Installation Instructions.
This product is legal for use on 1975 and older Non-Catalyst equipped vehicles and is considered a “Replacement Part” per California Air Resources Board regulations, providing ALL emissions sensitive components are retained, including EGR, A.I.R., Heat Risers, etc. and any original or retrofit PCV or NOx device is required for the year of the vehicle. Failure to retain any of these components, or use on ANY originally catalyst equipped vehicles, would render this product illegal for street or off highway use and may only be used for Closed Course Competition.
This product is ILLEGAL for street or off highway use and is only intended for Closed Course Competition use and may never be operated on the street or for off highway use, except for 1965 and older US manufactured, California Certified vehicles; 1967 and older foreign manufactured vehicles, which may have this product installed as long as the vehicle still meets emissions standards for the year of the vehicle and retains any original or retrofit emissions control devices, including EGR, A.I.R. and any NOx device required for the year of the vehicle.
This product is considered a Replacement part per CARB and EPA regulations for emissions compliance and is legal for sale and use on all vehicles in all 50 states when installed according to the Manufacturer’s Application Guide and Installation Instructions.
This product is legal for street or off highway use in states that do not required California EO certification. PerTronix has reasonable basis (prior testing) and believe that this product allows the vehicle to operate within the legal emissions standards in the states that accept the legal provisions of the Clean Air Act and EPA Memorandum 1A. This product is not legal for street or off highway use in states that require CARB EO’s and may only be sold or used for Closed Course Competition use in those states.
This product is certified by the manufacturer as being a Non-Emissions sensitive part and therefore does not require emissions certification as emissions regulations are not applicable.
This product is designed for swapping a non-original engine into a vehicle that did not offer it. Laws vary by state regarding emissions regulations for engine swaps. This product is illegal for Street or Off Highway use on any 1975 or newer vehicle originally equipped with a catalytic converter and may further be illegal depending on state or federal engine swap emissions laws regardless of vehicle year and would therefore only be legal for Closed Course Competition use.