Collection: Milltek

Milltek Sport is the UK's leading manufacturer of performance exhaust... Read More

Milltek Sport is the UK's leading manufacturer of performance exhaust systems, producing every system at their Derby factory to the highest quality standards. With over 40 years of motorsport heritage and ISO 9001 certification, Milltek Sport exhausts are trusted by enthusiasts and professional race teams worldwide.

At String Theory Garage, we stock the full Milltek Sport range for some of the most exciting performance cars available today — including the Toyota GR Yaris (Gen 1 & Gen 2), BMW M3 & M4 (F80/F82 and G8X generation), BMW M2 (F87 & G87), BMW M135i & M140i, and Porsche 911 (991, 992, GT3), Porsche 718 Cayman & Boxster, Porsche Cayenne, and Porsche Macan.

Every Milltek Sport system is crafted from 304L aircraft-grade stainless steel, ensuring exceptional durability and corrosion resistance that will last the life of your car. Whether you're looking for an ECE-approved road-legal system, an electronically controlled valved exhaust, a high-flow sports catalyst, or a track-focused race system, Milltek Sport has the solution.

All Milltek Sport exhausts are designed as direct OEM replacements — straightforward to fit, with no modifications required. Systems are available in a range of tip finishes including polished, brushed titanium, burnt titanium, Cerakote black, and carbon fibre, allowing you to personalise the look of your car's exhaust.