Our exhaust system uses larger piping compared to the factory exhaust system, yet weights 5 lbs. The factory system uses 2.56" piping, which reduces to 2.36" before splitting, greatly diminishing the overall diameter of the system. Finally, our system’s 4" exhaust tips dwarf the factory 3.15" tips, giving the rear of the vehicle a sportier look. Beautifully hand-crafted T304-stainless-steel components adorn the system with stunning TIG-welding throughout.
The new Large Bore-HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 4" cat-back with muffler. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value. For over 40 years, MagnaFlow has maintained its position at the forefront of high-end catalytic converter and performance exhaust manufacturing. MagnaFlow stands by its products with industry-leading warranties in service of its mission to provide the highest quality exhaust experience from start to finish.
It's more than our precision-fit or full engine-to-tailpipe product offering, Walker sets the standards. From mild rumble to wild roar, upgrading your exhaust will improve the sound of your truck and help it to stand out from the pack. This direct-fit SPEQ Series system bolts on to your Tacoma easily thanks to the extensive use of 3D scanning during development to ensure OEM-like fitment.
When used in the context of aftermarket parts or performance upgrades, "cat-back" is used to indicate which section of the exhaust system the parts replace. Cat-back systems are available as both single- and dual-exhaust. All Thermal R&