Collection: Porsche
You are now browsing for Porsche Parts & Upgrades
Here at String Theory Garage we stock a large and ever expanding range of Porsche Parts. A complete range of upgrades, all tested, developed and proven on our own Porsches. From Suspension upgrades to ECU tuning we have you covered. Parts and Upgrades available for Porsche 911 | Cayman | Boxster | GT2 | GT3 | GT4 | 718 | 981 | 987 | 986 | 996 | 997 | 991 | 992 | 993 | 964 & More.
We also offer full fitting with ride-height, corner balancing, and geometry setup as well as other services from our garage in Stratford upon Avon.
Upgrade your Porsche's agility with top-tier performance parts & expert geometry setup - unleash unparalleled handling and speed today at String Theory Garage.
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Milltek HJS HD 200CPSI Sports Cats for Porsche 911 (991.2) T / S / GTS (3.0L)
Regular price £1,924.00 GBPRegular priceSale price £1,924.00 GBP -
Milltek Rear Silencer Delete Exhaust System for Porsche 911 (991.2) T / S / GTS (3.0L)
Regular price From £2,256.62 GBPRegular priceSale price From £2,256.62 GBP -
Milltek Cat Back Exhaust System for Porsche 911 (991.1) GT3 & GT3 RS
Regular price From £686.87 GBPRegular priceSale price From £686.87 GBP -
Milltek Exhaust Tips for Porsche 911 (991.1) Carrera 2S & 4S (3.8L) Fits OE & MIlltek System
Regular price From £550.00 GBPRegular priceSale price From £550.00 GBP -
Milltek Rear Silencer Exhaust System for Porsche 911 (991.1) Carrera 2s & 4s (3.8L)
Regular price £1,362.40 GBPRegular priceSale price £1,362.40 GBP -
Milltek Rear Silencer Exhaust System for Porsche 911 (997.2) Carrera / Carrera 4 / S / GTS (3.6L & 3.8L)
Regular price £526.08 GBPRegular priceSale price £526.08 GBP -
Milltek Rear Silencer Cup Exhaust System for Porsche 911 (997.1) Carrera / Carrera S
Regular price £1,473.44 GBPRegular priceSale price £1,473.44 GBP -
Milltek Free Flow Manifolds for Porsche 911 (996) Turbo (inc X50/GT2)
Regular price £910.27 GBPRegular priceSale price £910.27 GBP -
Milltek Cat Back Cup Exhaust System for Porsche 911 (996) Carrera / Carrera S
Regular price £982.10 GBPRegular priceSale price £982.10 GBP -
Milltek Rear Silencer Valved Exhaust System for Porsche 911 (996) Carrera / Carrera S (PSE Equipped Cars)
Regular price £1,570.40 GBPRegular priceSale price £1,570.40 GBP -
Milltek Secondary Cat Bypass Exhaust System for Porsche Cayenne 958 S 4.8 V8 (Non Turbo)
Regular price £301.60 GBPRegular priceSale price £301.60 GBP -
Milltek Cat Back Resonated Exhaust System OEM Look for Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)
Regular price £1,549.96 GBPRegular priceSale price £1,549.96 GBP -
Milltek Cat Back Non-Resonated Exhaust System Cup Style for Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)
Regular price £1,772.75 GBPRegular priceSale price £1,772.75 GBP -
Milltek Cat Back Non-Resonated Exhaust System OEM Look for Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)
Regular price £1,301.65 GBPRegular priceSale price £1,301.65 GBP -
Milltek Cat Back Resonated Exhaust System Cup Style for Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)
Regular price £2,021.06 GBPRegular priceSale price £2,021.06 GBP -
Milltek Rear Silencer Exhaust System Valved for Porsche Macan 2.9 V6 GTS & Turbo (Facelift Models Only)
Regular price From £2,589.23 GBPRegular priceSale price From £2,589.23 GBP -
Cobra Imola T Motorsport Seat - FIA Approved
Regular price From £482.50 GBPRegular priceSale price From £482.50 GBP -
Cobra Aqua 4x4 Motorsport Seat
Regular price From £532.50 GBPRegular priceSale price From £532.50 GBP -
Cobra Evolution T Pro-Fit Motorsport Seat - FIA Approved
Regular price From £565.83 GBPRegular priceSale price From £565.83 GBP -
Cobra Suzuka T Pro-Fit Motorsport Seat - FIA Approved
Regular price From £524.17 GBPRegular priceSale price From £524.17 GBP -
Cobra Sebring T Pro-Fit Motorsport Seat - FIA Approved
Regular price From £565.83 GBPRegular priceSale price From £565.83 GBP -
Cobra Ultralite Pro-Fit Motorsport Seat - FIA Approved
Regular price From £2,299.17 GBPRegular priceSale price From £2,299.17 GBP -
Cobra Sebring T Low Profile Motorsport Seat - FIA Approved
Regular price From £565.83 GBPRegular priceSale price From £565.83 GBP -
Cargraphic Exhaust Valve Controller for Porsche 911 (991.1) Carrera / Carrera S / Carrera 4S
Regular price From £337.50 GBPRegular price£316.67 GBPSale price From £337.50 GBP













