BORLA® Cat-Back™ system 140238 is a 2.25" diameter full True Dual, split side exit, with single 4" round bright chrome on T-304 stainless steel tips on each tail pipe. A system with black chrome on T-304 stainless steel tips is also available. This system gives the Toyota a great look and a nice performance kick. It delivers that mellow Touring sound with no drone inside the vehicle. The muffler contains and internal H-Pipe for increased performance and improved sound. The full dual system even weighs less than the factory single system, thanks to the lightweight T-304 stainless steel fabrication and, not surprisingly, out flows the stock exhaust. This BORLA® dual system even exhibits better fuel economy numbers which is nice for a big truck. BORLA® Cat-Back™ and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. BORLA®, the original pioneers of high quality, T-304 austenitic stainless steel (superior to 409 or aluminized steel) free-flow exhaust utilizes patented award and race winning technology to deliver quality, sound, performance gains and enhanced fuel economy -- all with an easy bolt-on installation. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. And backed by an unsurpassed written million-mile warranty. Oversize box shipping rates apply to this system.