Borla Boomers Thumper Muffler (40057) 1527 80mm lift to increase airflow

80mm lift to increase airflow and maximize power output

and reduced nose dive that can shorten your stopping distance

Round threads for easy adjustment

BMC air filter

Borla Boomers Thumper Muffler (40057) 1527 80mm lift to increase airflowBorla 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