Secondary Catalyst Bypass | BMW 3 Series / 4 Series | Milltek Sport

Milltek Sport Bypass secundaire katalysator | Milltek Article number: SSXBM1144.

Applicability and technical information::

Secondary Catalyst Bypass Used for: BMW 3 Series (F80 M3 & M3 Competition Saloon (Non OPF/GPF Models Only)) | Year: 2014-2018 | Remarks: Resonated - Fits with Milltek Sport cat back only (Standard & Equal Length) and either Milltek Sport or OE primary downpipesSecondary Catalyst Bypass Used for: BMW 4 Series (F82/83 M4 Coupe/Convertible & M4 Competition Coupé (Non-OPF equipped models only)) | Year: 2014-2018 | Remarks: Resonated - Fits with Milltek Sport cat back only (Standard & Equal Length) and either Milltek Sport or OE primary downpipes

This item is in "resonated" design and is less loud.