BMW B58 Fatboy 5" Downpipe - Mastery of Art & Design MAD-052

The MAD 5 inch Catless B58 Downpipe is a high-performance aftermarket upgrade for BMW B58 engine vehicles, designed to increase power and torque while improving exhaust flow. This downpipe is made from premium quality stainless steel and is...

BMW F/G B58 4.5" Downpipe with Bracket - Mastery of Art & Design MAD-007

  The Mad Catless B58 Downpipe is an essential upgrade for any BMW enthusiast looking to maximize the performance of their B58 engine. Made from high-quality materials, this downpipe is designed to provide maximum exhaust flow and improve turbo...