.Doug Thorley exhaust systems are ideal to wake up the performance and looks of your vehicle, while providing the best bang for your buck. Built to unleash horsepower, add a sportier tone, coupled with the longevity of stainless steel materials for your ride. Exacting CNC mandrel bends, thick 16-gauge tubing, and core-specific performance mufflers create impressive bolt-on power. Get the best value for your moneywith Doug Thorley exhaust products.