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Collection: Porsche

You are now browsing for Porsche Parts & Upgrades

Here at String... Read More

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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581 products

Milltek HJS HD 200CPSI Sports Cats for Porsche 911 (991.2) T / S / GTS (3.0L)

Milltek HJS HD 200CPSI Sports Cats for Porsche 911 (991.2) T / S / GTS (3.0L)

Vendor:
Milltek

Regular price £1,924.00 GBP

Regular price Sale price £1,924.00 GBP
Milltek Full Resonated Exhaust System with High Flow Sports Cats for Porsche 911 (991.2) Turbo S

Milltek Full Resonated Exhaust System with High Flow Sports Cats for Porsche 911 (991.2) Turbo S

Vendor:
Milltek

Regular price £3,370.00 GBP

Regular price Sale price £3,370.00 GBP
Milltek Full Race X Pipe Exhaust System with High Flow Sports Cats for Porsche 911 (991.2) Turbo S

Milltek Full Race X Pipe Exhaust System with High Flow Sports Cats for Porsche 911 (991.2) Turbo S

Vendor:
Milltek

Regular price £3,165.00 GBP

Regular price Sale price £3,165.00 GBP
Milltek Exhaust Tips for Porsche 911 (991.2) GT3 | GT3 RS (Fits OE & MIlltek System)

Milltek Exhaust Tips for Porsche 911 (991.2) GT3 | GT3 RS (Fits OE & MIlltek System)

Vendor:
Milltek

Regular price From £511.08 GBP

Regular price Sale price From £511.08 GBP
Milltek Rear Silencer Delete Exhaust System for Porsche 911 (991.2) GT3 | GT3 RS

Milltek Rear Silencer Delete Exhaust System for Porsche 911 (991.2) GT3 | GT3 RS

Vendor:
Milltek

Regular price From £686.87 GBP

Regular price Sale price From £686.87 GBP
Milltek OPF Back Exhaust System for Porsche 911 (992.1) Carrera S (3.0L T), GTS & Dakar OPF Models

Milltek OPF Back Exhaust System for Porsche 911 (992.1) Carrera S (3.0L T), GTS & Dakar OPF Models

Vendor:
Milltek

Regular price £2,080.00 GBP

Regular price Sale price £2,080.00 GBP
Milltek Rear Silencer Delete Titanium Exhaust System for Porsche 911 (992.1) Carrera S (3.0L T), GTS & Dakar OPF Models

Milltek Rear Silencer Delete Titanium Exhaust System for Porsche 911 (992.1) Carrera S (3.0L T), GTS & Dakar OPF Models

Vendor:
Milltek

Regular price £2,787.20 GBP

Regular price Sale price £2,787.20 GBP
Milltek Rear Silencer Exhaust System for Porsche 911 (992.1) GT3

Milltek Rear Silencer Exhaust System for Porsche 911 (992.1) GT3

Vendor:
Milltek

Regular price From £2,594.80 GBP

Regular price Sale price From £2,594.80 GBP
Milltek OPF Back Exhaust System for Porsche 718 Cayman GT4 | Boxster GTS (4.0) PDK Cars

Milltek OPF Back Exhaust System for Porsche 718 Cayman GT4 | Boxster GTS (4.0) PDK Cars

Vendor:
Milltek

Regular price From £2,147.89 GBP

Regular price Sale price From £2,147.89 GBP
Milltek OPF Back Exhaust System for Porsche 718 Cayman GT4 | Boxster GTS (4.0) Pre Feb 2020

Milltek OPF Back Exhaust System for Porsche 718 Cayman GT4 | Boxster GTS (4.0) Pre Feb 2020

Vendor:
Milltek

Regular price From £2,054.29 GBP

Regular price Sale price From £2,054.29 GBP
Milltek OPF Back Rear Silencer Delete Exhaust System for Porsche 718 Cayman | Boxster GTS (2.5T)

Milltek OPF Back Rear Silencer Delete Exhaust System for Porsche 718 Cayman | Boxster GTS (2.5T)

Vendor:
Milltek

Regular price From £954.26 GBP

Regular price Sale price From £954.26 GBP
Milltek Cat Back Resonated Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 2

Milltek Cat Back Resonated Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 2

Vendor:
Milltek

Regular price From £1,402.72 GBP

Regular price Sale price From £1,402.72 GBP
Milltek Cat Back Non-Resonated Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 2

Milltek Cat Back Non-Resonated Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 2

Vendor:
Milltek

Regular price From £1,220.42 GBP

Regular price Sale price From £1,220.42 GBP
Milltek Cat Back Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 1

Milltek Cat Back Exhaust System for Porsche 987 Cayman S | Boxster S (3.4L) Gen 1

Vendor:
Milltek

Regular price From £1,359.26 GBP

Regular price Sale price From £1,359.26 GBP
Cargraphic Sport OPF Set Flow Optimized - Porsche 718 Boxster Spyder Cayman GT4 GTS

Cargraphic Sport OPF Set Flow Optimized - Porsche 718 Boxster Spyder Cayman GT4 GTS

Vendor:
Cargraphic

Regular price £3,918.27 GBP

Regular price Sale price £3,918.27 GBP
MOTON 3-way Adjustable Coilovers - Porsche (718) Cayman | Boxster

Sale

MOTON 3-way Adjustable Coilovers - Porsche (718) Cayman | Boxster

Vendor:
MOTON

Regular price £5,291.67 GBP

Regular price ~~£5,520.00 GBP~~ Sale price £5,291.67 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche (981) Cayman | Boxster

Sale

MOTON 3-way Adjustable Coilovers - Porsche (981) Cayman | Boxster

Vendor:
MOTON

Regular price £5,291.67 GBP

Regular price ~~£5,520.00 GBP~~ Sale price £5,291.67 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche (987) Cayman

Sale

MOTON 3-way Adjustable Coilovers - Porsche (987) Cayman

Vendor:
MOTON

Regular price £6,216.67 GBP

Regular price ~~£6,524.00 GBP~~ Sale price £6,216.67 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 911 (993) Carrera 2 | 4

Sale

MOTON 3-way Adjustable Coilovers - Porsche 911 (993) Carrera 2 | 4

Vendor:
MOTON

Regular price £4,858.33 GBP

Regular price ~~£5,094.00 GBP~~ Sale price £4,858.33 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 944 Type 2

Sale

MOTON 3-way Adjustable Coilovers - Porsche 944 Type 2

Vendor:
MOTON

Regular price £5,316.67 GBP

Regular price ~~£5,576.00 GBP~~ Sale price £5,316.67 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989 (Safari)

Sale

MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989 (Safari)

Vendor:
MOTON

Regular price £5,483.33 GBP

Regular price ~~£5,752.00 GBP~~ Sale price £5,483.33 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989 (OEM Replacement)

Sale

MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989 (OEM Replacement)

Vendor:
MOTON

Regular price £5,233.33 GBP

Regular price ~~£5,488.00 GBP~~ Sale price £5,233.33 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989

Sale

MOTON 3-way Adjustable Coilovers - Porsche 911 Early Models 1963 - 1989

Vendor:
MOTON

Regular price £5,358.33 GBP

Regular price ~~£5,620.00 GBP~~ Sale price £5,358.33 GBP

Sale
MOTON 3-way Adjustable Coilovers - Porsche 911 (997) GT2 | GT3 | GT3RS

Sale

MOTON 3-way Adjustable Coilovers - Porsche 911 (997) GT2 | GT3 | GT3RS

Vendor:
MOTON

Regular price £6,066.67 GBP

Regular price ~~£6,366.00 GBP~~ Sale price £6,066.67 GBP

Sale

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