Milltek Large Bore Downpipes and Hi-Flow Sports Cats - Fits with Milltek Sport cat-back system only - Requires Lambda Extensions - Requires 2 x 18307851168 for installation - F82/83 M4 Coupe/Convertible & M4 Compe
Mandrel bending ensures constant radius bends for optimized gasflow, and bore diameters are carefully enlarged over stock to ensure ultimate without the loss of mid-range torque. All of the Milltek exhaust systems endure a comprehensive acoustic development process to deliver a tone that is sporty and crisp, without ever inducing NVH, drone or cabin resonance.
each one produced in aerospace grade type 304, non-magnetic stainless steel. This superior material is less susceptible to discolouration, lasts almost indefinitely and is used throughout the entire construction of our pipework, silencers and associated hardware.
The use of de-cats, sports cats are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test.
Only EC type-approved components are legal and fit for road use.
Only EC type-approved components are legal and fit for road use.