Flowmaster 954010-12 - 10 Series Delta Force Race Muffler

10 Series Race Muffler - 4.00 Center In / 4.00 Center Out - Aggressive Sound Single chamber. The 10 Series race mufflers are intended for racing applications and utilize Flowmaster's Delta Flow technology for maximum performance. Recommended for racing applications where a muffler is required without a set decibel limit to be met. Will provide a noticeable dB reduction over open headers. Please call the Flowmaster tech-line for assistance with specific dB requirements and applications.