Our 3” exhaust system for the Hilux replaces the entire factory exhaust system, including the dump pipe off the turbo. It gives some good gains, particularly bringing the turbo boost in much earlier, adding responsiveness down low in the rev range. The system is available with a large straight-through muffler, which keeps the exhaust noise level close to the factory levels, with no annoying drone inside the cab. We’ve also got other options to give you more noise, including hotdog and pipe-only options for a much louder note. The mandrel bends and straight through mufflers on our Hilux exhaust system ensure the highest possible flow, and along with that comes maximum performance and fuel economy.