For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flow master cat-back exhausts system provides. DOR. /DOS systems are the perfect choice, and include exit pipes for both dual out rear and dual out side configurations so that you can choose the one that fits your style. This American Thunder system delivers a moderate interior and exterior tone and is suited to the enthusiast who wants their performance to be heard. Like all Flow master systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
- RACE-INSPIRED PERFORMANCE DESIGN: Flowmaster’s loudest, most aggressive chambered muffler, built for extreme tone and raw street presence. Ideal for muscle cars, LS swaps, lifted trucks, drag cars, retro-mods, and off-road builds. Built for hardcore enthusiasts who want to be heard before they’re seen. This muffler makes no apologies for being loud.
- LEGENDARY DELTA FLOW TECHNOLOGY: Patented internal chambered muffler design increases exhaust velocity and reduces back pressure for maximum power and performance.
- PROVEN PERFORMANCE: Enhances exhaust flow to boost horsepower, torque and increased throttle response.
- BUILT TO LAST: Constructed from premium 409 stainless steel for ultimate durability and fully MIG-welded to withstand extreme heat, vibration, and tough driving conditions.
- UNIVERSAL FITMENT: Designed with a short case length to accommodate a wide range of custom builds and modified exhaust setups, available in multiple inlet/outlet sizes and configurations.
- RACE-INSPIRED PERFORMANCE DESIGN: Flowmaster’s loudest, most aggressive chambered muffler, built for extreme tone and raw street presence. Ideal for muscle cars, LS swaps, lifted trucks, drag cars, retro-mods, and off-road builds. Built for hardcore enthusiasts who want to be heard before they’re seen. This muffler makes no apologies for being loud.
- LEGENDARY DELTA FLOW TECHNOLOGY: Patented internal chambered muffler design increases exhaust velocity and reduces back pressure for maximum power and performance.
- PROVEN PERFORMANCE: Enhances exhaust flow to boost horsepower, torque and increased throttle response.
- BUILT TO LAST: Constructed from premium 409 stainless steel for ultimate durability and fully MIG-welded to withstand extreme heat, vibration, and tough driving conditions.
- UNIVERSAL FITMENT: Designed with a short case length to accommodate a wide range of custom builds and modified exhaust setups, available in multiple inlet/outlet sizes and configurations.
