Non-resonated 102mm secondary catalyst bypass for the BMW G8X M3 and M4 (S58 3.0 Turbo). Manufactured from T304L aircraft-grade stainless steel with mandrel-bent construction and hand-finished welds, this track-focused system eliminates secondary catalytic restriction while retaining OEM mounting points and hanger compatibility.
Key Features:
T304L stainless steel, mandrel-bent construction
Non-resonated 102mm design for maximum flow
Retains OE mounting points and hanger compatibility
