Borla Boomers Thumper Muffler (40057) 1527 aerospace-grade carbon fiber with a

aerospace-grade carbon fiber with a supportive fiberglass skeleton

and valves for race inspired weight reduction and sound

compatible with most aftermarket exhaust systems

BMC air filter

Borla Boomers Thumper Muffler (40057) 1527 aerospace-grade carbon fiber with aBorla Bommer Muffler Thumper 2. 25" Inlet Pipe Single 4" Round Tip. Universal part. (40057) BORLA Boomers are full blown, high tech, dyno and race proven mufflers for the street or track. These eye popping, fully polished mufflers utilize BORLA's patented race winning technology for improved exhaust flow. In addition to adding head turning sound, they also add a modest boost in horsepower. They utilize 100% welded construction for strength. High