BMW F8X M3 / M4 400 Cell Catted Downpipes

Valvetronic Designs 400-Cell Catted Downpipes for the BMW F80 M3, F82 M4, and M2 Competition are designed to deliver increased performance without sacrificing refinement. Featuring high-flow 400-cell metallic catalysts, these downpipes reduce exhaust restriction while maintaining catalytic functionality. The result is improved turbo response, stronger mid-range pull, and a deeper, more aggressive exhaust tone compared to factory components. Unlike catless systems, the 400-cell design helps retain a more controlled exhaust smell and improved daily usability. Manufactured from premium stainless steel for long-term durability, these downpipes are engineered for direct bolt-on installation using factory mounting points. Tuning may be required to prevent check engine lights and to maximize performance gains.

• High-flow 400-cell metallic cats
• improved turbo spool
• reduced backpressure
• bolt-on installation
• stainless steel construction
• deeper exhaust tone
• reduced odor vs catless
• designed to minimize CEL with proper tuning.

Attributes:

• Brand Name: Valvetronic Designs
• GTIN: 00810201226402
• Finish: Brushed
• Installation Notes: OEM Replacement
• Material: Stainless Steel
• Outlet Quantity: 1
• What is Included: Downpipe(s) & Hardware

Extended Information:

• Country of Origin: CN
• Emissions : EPA Eligible

Packing Information:

• Quantity of Each: 1
• Package UOM: EA
• Dimension: 27.5 x 11.75 x 6.5 inches
• Weight: 17 POUNDS