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.

Features

Race proven Delta Flow technology

No internal packing to blowout

Minimal decibel reduction over open headers

Durable fully welded 16 gauge aluminized steel - single chamber race muffler