5 Star Google Reviews

Welcome to our store

Worldwide Shipping

Milltek Exhausts Now Available

String Theory Garage will be closed to the public from Wednesday, 29th July to Friday, 7th August for our annual shutdown.

If you need to get in touch, please send us a 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 upon our return.

Thank you for your understanding, String Theory Garage Team

Your cart

Continue shopping

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Featured collection

STG GR Yaris 21.5mm Bolt-on Spacers (Set of 4)

Sale

STG GR Yaris 21.5mm Bolt-on Spacers (Set of 4)

Regular price £260.95 GBP

Regular price ~~£289.95 GBP~~ Sale price £260.95 GBP

Sale
Hella Horn Upgrade - GR Yaris

Sale

Hella Horn Upgrade - GR Yaris

Regular price From £20.69 GBP

Regular price ~~£22.99 GBP~~ Sale price From £20.69 GBP

Sale
STG Custom Alcantara Steering Wheel – Toyota GR Yaris Gen 1 (2020–2024)

STG Custom Alcantara Steering Wheel – Toyota GR Yaris Gen 1 (2020–2024)

Regular price From £395.00 GBP

Regular price Sale price From £395.00 GBP
STG Titanium OPF to Backbox Stud Kit - 718 Cayman | Spyder | Boxster

Sale

STG Titanium OPF to Backbox Stud Kit - 718 Cayman | Spyder | Boxster

Regular price £85.50 GBP

Regular price ~~£95.00 GBP~~ Sale price £85.50 GBP

Sale