BMW GEN3 B58N 400 Cell Catted Downpipes

These downpipes are designed for the Gen 3 B58 engine, reducing backpressure and improving exhaust flow while maintaining EPA compliance.

• The description claims increased exhaust efficiency while maintaining compliance standards.
• The description claims reduced restriction enhances turbo spool characteristics.
• The description claims increased tuning headroom supports higher boost levels.
• The description claims enhanced exhaust character includes a deeper tone and sharper crackles.