Cat-back Milltek BMW 3 Series F80 M3, 4 Series F82-F83 M4 - ECE Homologated - Resonated Road - Quad GT90 Titanium tips

Milltek Sport exhaust system for BMW 3 Series F80 M3 / 4 Series F82-F83 M4

Replacing the factory exhaust with a Milltek Sport system brings back the character that the stock setup muffles on your BMW 3 Series F80 M3 / 4 Series F82-F83 M4: a rounder tone at idle, opening up cleanly through the rev range, without gimmicks.

Technical specifications

• Milltek part number: SSXBM994
• Part type: Exhaust system
• Configuration: resonated (with intermediate muffler), with valves
• Details: ECE homologated, with Road intermediate muffler, quad GT90 titanium tips
• Tube diameter: 70 mm (2.75 inches)
• Outlets: 4 GT90 outlets, 90 mm
• Tip finish: titanium finish
• Fitting information: Requires cutting the factory exhaust, with valves
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC homologated
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• BMW 3 Series F80 M3 3.0 Biturbo (M3 Competition incl., Sedan, 2014-2018, without DPF)
• BMW 4 Series F82-F83 M4 3.0 Biturbo (M4 and M4 Competition, Coupe / Convertible, 2014-2018, without DPF)

Not sure about fitment for your vehicle? Contact us with your VIN before ordering.

Most frequently asked questions

• Highway drone? It is the number one concern on forums. This version keeps an intermediate muffler (resonated): the sound stays full under acceleration, but the system stays calm at steady cruising speed, ideal for everyday driving.
• What about the neighbors in the morning? The valves are controlled as on the factory system: closed and quiet at startup or in comfort mode, fully open in sport mode.
• Homologation: this system is ECE / EC homologated, a real plus for driving with peace of mind and passing the contrôle technique.
• Fitting: installation requires cutting the factory exhaust. We recommend having a professional handle the fitting.

Why choose Milltek Sport?

A benchmark among European tuners, Milltek Sport develops each of its systems directly on the vehicle. Mandrel bending, clean welds and aerospace-grade stainless steel ensure a system that lasts and sounds right.

Going further

• Cat-back exhaust: resonated or non-resonated, which one to choose for your car?
• Valved exhaust systems: how they work and should you keep them?
• Exhaust systems and the French contrôle technique