B58 High-Flow Downpipe with 200-Cell Race Cat

The VRSF catted downpipe is engineered to enhance the performance of B58 engine variants found in models like the M240i, 340i, 440i, 540i, and 740i, including xDrive configurations. This downpipe is presented as a high-impact modification, offering a substantial return on investment for performance gains. Constructed from hand-crafted, tig-welded SS304 grade stainless steel, the downpipe features a full 4.5″ diameter design. It incorporates a CNC-machined 304-grade stainless steel flange for a smooth transition from the turbocharger to the mid-pipes. The integrated 200-cell high-flow catalytic converter is key to reducing back pressure, which in turn promotes faster turbo spool, boosts overall power output, and contributes to a more aggressive exhaust sound. The design includes smooth radius bends to minimize turbulence and optimize flow. This downpipe is compatible with both the stock cat-back exhaust system and aftermarket variants. It is compatible with a wide range of BMW models including the F22/F23 M240i, F30/F31/F34 340i, F32/F33/F36 440i, G11 740i, and G30/G31 540i, all equipped with the B58 engine. The product comes with a VRSF Lifetime Warranty, though the warranty on the catted version is limited to two years.