String Theory Garage will be closed to the public from Wednesday, 29th July to Thursday, 6th August for our annual shutdown.
If you need to get in touch, please leave us a voicemail or send an email. Our team will happily get back to you when we return on Friday, 7th August.
Shopping online? Don't worry! Our online store will remain active! We hope to ship orders placed for in-stock items as normal during the shutdown. Anything else will be dealt with upon our return.
Thank you for your understanding, String Theory Garage Team
Elevate the exhaust note of your Toyota GR Yaris Gen 2 (2024 and later) with this Milltek Sport Resonated OPF/GPF Filter-Back System. Built for the updated GR Yaris platform, this 76mm (3") stainless steel system is designed as a direct replacement for the factory particulate filter-back section, delivering a richer, more composed exhaust note whilst remaining fully road-legal and ECE approved.
The resonated internals smooth out any drone or resonance at cruising speeds, making this system as comfortable on the motorway as it is exciting on a B-road. You'll immediately notice an improved bark on acceleration and a more satisfying induction-to-exhaust soundtrack — all without compromising day-to-day usability. Available in five tip finishes, including the new Brushed Titanium and Burnt Blue Titanium options exclusive to the Gen 2 range.
Engineered as a bolt-on fitment with no modifications required. No ECU remap is needed, although a Stage 1 tune will further enhance performance. Manufactured in the UK from 304L aircraft-grade stainless steel.
Fitment: Toyota GR Yaris 1.6T (OPF/GPF Models Only) 2024 onwards
Pipe diameter: 76.20mm (3")
Tip options: Polished, Cerakote Black, Brushed Titanium, Burnt Blue Titanium, Carbon Fibre
E-marked: Yes (ECE approved)
Direct OEM replacement — no modifications required
