Outlaw Series Race Muffler - 3.00 Center In / 3.00 Center Out - Aggressive Sound; Outlaw mufflers are designed to be connected directly to the header collectors or can be added into an existing exhaust system. Recommended for racing applications where a muffler is required without a set decibel limit to be met. Please call the Flowmaster tech-line for assistance with specific decibel requirements and applications.;