Borla cat-back exhaust system.

Includes Hybrid models. It was designed specifically for the Tundra 3.4L. The system features the aggressive BORLA ATAK muffler and Polyphonic Harmonizer Technology inside the muffler assembly which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound without any drone. The system also features a Merge X-Pipe for increased performance and improved sound. Add Extension Pipes 60734 for Crew Cab with Standard Bed (6' 6") 157.7" Wheelbase vehicles. Add Extension Pipes 60735 for Extended Cab with Long Bed (6' 1") 164.6" Wheelbase Vehicles. Our computer numerical control (CNC) manufacturing techniques ensures accurate fit and maximum performance. Mandrel bends ensure maximum flow & power. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. 2.5" True Dual Design. ATAK Sound Level. Polyphonic Harmonizer Technology.

A cat-back system replaces everything behind the catalytic converter and leaves emissions equipment in place.

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