GR Yaris Specialists
A complete range of upgrades, all tested, developed and proven on our own GR Yaris
String Theory Signature Seats
Designed to Match OEM Interior but Improve Seating Position
Premium Exhaust Systems for Performance Cars. Stocked and fitting available with String Theory Garage
Free Fitting on GR Yaris HKS Exhausts
Popular GR Yaris Upgrades
-
STG GR Yaris 21.5mm Bolt-on Spacers (Set of 4)
Regular price £285.00 GBPRegular priceUnit price / per -
AST 4100 String Theory Signature Series Coilover Suspension Kit Toyota GR Yaris Mk1
Regular price From £2,540.00 GBPRegular priceUnit price / per£2,659.20 GBPSale price From £2,540.00 GBPSale -
STG GR Yaris Height Adjustable Spring Kit
Regular price From £695.00 GBPRegular priceUnit price / per -
Alcantara Steering Wheel Toyota GR Yaris
Regular price From £395.00 GBPRegular priceUnit price / per
CARGRAPHIC Porsche Exhaust Valve Control Units - Now in Stock
-
Cargraphic Exhaust Valve Controller for Porsche 718 Boxster GTS (4.0L) | Spyder | RS
Regular price From £330.00 GBPRegular priceUnit price / per£380.00 GBPSale price From £330.00 GBPSale -
Cargraphic Exhaust Valve Controller for Porsche 911 (992) GTS | GTS 4 | Targa 4 GTS (3.0L)
Regular price From £699.00 GBPRegular priceUnit price / per -
Cargraphic Exhaust Valve Controller for Porsche 718 Boxster GTS 4.0 | Spyder (Factory PSE Controlled)
Regular price £699.00 GBPRegular priceUnit price / per -
Cargraphic Exhaust Valve Controller for Porsche 911 (992) Targa 4 | Targa 4S (3.0L)
Regular price From £699.00 GBPRegular priceUnit price / per
Porsche Chassis Tuning Experts
String Theory Garage alignment products, upgrades and expertise help you to get the most from your Porsche's chassis.
Porsche Upgrades and Tuning Parts
-
STG Titanium Exhaust Manifold Stud Kit - 911 991 GT3
Regular price £139.00 GBPRegular priceUnit price / per -
AST Suspension 5100 Comp 1-way Adjustable Inverted Coilovers - Porsche 718 (982) Cayman | Boxster
Regular price £3,420.00 GBPRegular priceUnit price / per£3,585.60 GBPSale price £3,420.00 GBPSale -
STG 996 / 997 Rear Dogbone Spherical Bearing Kit
Regular price £550.00 GBPRegular priceUnit price / per -
STG Adjustable Rear Toe Link Arms - Cup Car Style 981 718
Regular price £405.00 GBPRegular priceUnit price / per
STG 718 Spyder/GT4 & 981 GT4 Chassis Setup
Regular price
£390.00 GBP
Regular price
Sale price
£390.00 GBP
Unit price
/
per
Akrapovic Titanium Exhausts
Available now for most makes and models
Shop Akrapovic Exhausts
-
Akrapovič Toyota GR Yaris Slip-on Exhaust System Titanium
Regular price From £2,966.78 GBPRegular priceUnit price / per -
Akrapovič BMW M140i (F20/F21) Non-OPF Stainless Steel Exhaust
Regular price From £3,005.00 GBPRegular priceUnit price / per -
Akrapovič Porsche 981 Boxster/Spyder/Cayman GT4 Slip-On Line (Titanium)
Regular price £6,527.42 GBPRegular priceUnit price / per -
Akrapovič Porsche 911 GT3/RS/GT3 Touring (992) Slip-On Race Line
Regular price £4,308.00 GBPRegular priceUnit price / per