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MagnaFlow 12266 5x8-Inch Oval Straight-Through Performance Muffler
This is a universal straight-through muffler built around a free-flowing perforated stainless steel core, designed to add MagnaFlow's deep exhaust tone while improving flow over a stock muffler.
What It Fits
Universal application with a 2.5-inch inlet and 2.25-inch outlet. Suitable for a wide range of vehicles using this inlet/outlet exhaust pipe configuration.
What It Does
Uses a straight-through perforated core wrapped in stainless steel mesh with acoustic fiber fill to maintain exhaust velocity while producing a smooth, deep tone. Dyno testing supports improved flow dynamics and exhaust gas evacuation versus a stock muffler.
Construction
Stainless steel, 5x8x18-inch oval body with a satin finish. Reversible, universal inlet/outlet layout with a 2.5-inch inlet and 2.25-inch outlet.
What's Included
- 1 muffler, model 12266
Compatibility Limits
Gaskets and hardware are not included. Requires a 2.5-inch inlet and 2.25-inch outlet exhaust configuration. Custom fabrication, cutting, or welding may be required to integrate this universal muffler into a specific exhaust system. Professional installation is highly recommended.
Installation
- Determine the desired mounting location and orientation in the existing exhaust system, using the muffler's reversible design as needed.
- Cut or fit the existing exhaust piping to accept the muffler's 2.5-inch inlet and 2.25-inch outlet.
- Weld or clamp the muffler in place using appropriate exhaust hardware, which is not included.
- Support the muffler with proper hangers to prevent stress on the piping and connections.
- Start the engine and check for leaks at all new connections.
FAQ
What is the 12266?It is a MagnaFlow universal straight-through oval muffler with a 2.5-inch inlet and 2.25-inch outlet.
What size exhaust pipe does this muffler fit?A 2.5-inch inlet and 2.25-inch outlet configuration.
Is this muffler vehicle-specific?No, it is a universal design suitable for a wide range of vehicles with a matching inlet/outlet size.
Are gaskets and clamps included?No, gaskets and hardware are not included.
Can this muffler be installed in either direction?Yes, it has a reversible, universal inlet/outlet design for flexible orientation.
What is the body size of this muffler?5x8x18 inches.
What is the muffler made from?Stainless steel with a satin finish.
Does installation require welding?It may require custom fabrication, cutting, or welding depending on your existing exhaust system. Professional installation is highly recommended.
What is the warranty on this muffler?A limited lifetime construction warranty.
MagnaFlow
MagnaFlow exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop MagnaFlow Street Series cat-back systems, axle-back exhausts, mufflers, direct-fit catalytic converters, resonators, and exhaust tips for Chevrolet Silverado, Ford F-150, RAM 1500, Jeep Wrangler and Gladiator, Nissan 350Z, Toyota Tacoma and Yaris, and Volkswagen and BMW platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 922 MagnaFlow SKUs across cat-back, axle-back, muffler, and catalytic converter categories. What This Brand Covers MagnaFlow is known for straight-through stainless steel mufflers, a signature deep tone, and one of the widest direct-fit vehicle applications in the aftermarket exhaust industry, including gas and diesel trucks, SUVs, muscle cars, and import platforms. Core Product Families Street Series cat-back systems deliver a bold, aggressive tone for d...
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