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Collection: Suspension

We have partnered with most leading aftermarket parts manufacturers, from... Read More

We have partnered with most leading aftermarket parts manufacturers, from performance springs and coilover kits to Anti roll bars & camber arms, and are proud to be able to offer their products to our customers.

Browse our range below.

If you can't see what you're after or are not sure what you need to get the most out of your car, then get in touch with us. We can source pretty much any aftermarket parts and have a passion, enthusiasm and knowledge of vehicle dynamics, suspension tuning and chassis setup like no other.

Searching and choosing the correct suspension and axle components for your car is easy with String Theory Garage. To quickly locate your required component, browse our website using the search bar & category filters.

Aerial view of an AST 4100 kit showing 4 AST shock absorbers, 4 springs, 2 top mounts & fitting tools

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Scirocco MK3 (1K) 2008 - 2017 (5 products)
Silvia (S14) 1993 - 2000 (6 products)
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TT MK2 (8J) 2006 - 2014 (5 products)
TT MK3 (FV/8S) 2014 - 2023 (5 products)
WRX STI 1st Gen (VA) 2015 - 2021 (4 products)
GR Supra MK5 (A90) 2019 - Present (3 products)
Impreza 2nd Gen (GD) 2000 - 2007 (14 products)
R8 Gen 2 (Type 4S) 2015 - 2024 (4 products)
718 (4 products)
370Z | Fairlady Z (Z34) 2008 - 2021 (5 products)
Accord (CL7) 2002 - 2008 (4 products)
GT-R (R32) 1989 - 1994 (5 products)
Model 3 (5YJ3) 2017 - Present (8 products)
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Supra MK4 (A80) 1993 - 2002 (4 products)
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Audi (22 products)
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Honda (56 products)
Hyundai (3 products)
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Lotus (21 products)
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Nissan (28 products)
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1 Series (E81 | E82 | E87 | E88) 2004 - 2013 (12 products)
1 & 2 Series (F20 | F21 | F22 | F23) 2012 - 2021 (19 products)
1 Series (F40) 2019 - 2024 (5 products)
M2 (F87) 2016 - 2021 (12 products)
2 Series (F44 | F45 | F46) 2020 - Present (4 products)
2 Series (G42) 2021 - Present (1 products)
M2 (G87) 2023 - Present (15 products)
3 Series (E30) 1982 - 1994 (11 products)
3 Series (E36) 1990 - 2000 (13 products)
3 Series (E46) 1997 - 2006 (10 products)
3 Series (E90 | E92 | E93) 2005 - 2011 (11 products)
3 Series (F30 | F31) 2011 - 2019 (6 products)
M3 (F80) 2014 - 2018 (10 products)
3 Series (G20 | G21 | G28) 2018 - Present (8 products)
M3 (G80 | G81) 2020 - Present (20 products)
4 Series (F32 | F33 | F36) 2013 - 2020 (1 products)
M4 (F82 | F83) 2014 - 2020 (11 products)
4 Series (G22 | G23 | G26) 2020 - Present (1 products)
M4 (G82 | G83) 2020 - Present (17 products)
5 Series (F10 | F11) 2010 - 2017 (2 products)
5 Series (G30) 2016 - 2024 (1 products)
M5 (F90) 2017 - Present (1 products)
X Series (All Models) (2 products)
Z3 (E36/7 | E36/8) 1995 - 2002 (4 products)
Z4 (E85 | E86) 2003 - 2008 (10 products)
Z4 (G29) 2018 - Present (2 products)
MX-5 NC (6 products)
MX-5 ND (5 products)
911 (964) 1989 - 1993 (7 products)
911 (993) 1993 - 1997 (7 products)
911 (996) 1997 - 2006 (23 products)
911 (997) 2004 - 2013 (28 products)
911 (991) 2011 - 2019 (12 products)
911 (992) 2018 - Present (1 products)
Boxster (986) 1996 - 2004 (5 products)
Cayman | Boxster (987) 2004 - 2012 (11 products)
Cayman | Boxster (981) 2012 - 2016 (11 products)
Cayman | Boxster | Spyder 718 (982) 2016 - Present (11 products)
RX-8 (8 products)
Focus MK2 (C307) 2004 - 2010 (4 products)
Focus MK3 (C346) 2010 - 2018 (4 products)
Fiesta MK6 (B299) 2008 - 2017 (3 products)
Fiesta MK5 (BE256 | BE257) 2002 - 2008 (3 products)
Civic (EJ) 1991 - 1995 (4 products)
Civic (EK) 1995 - 2000 (5 products)
Civic Type R (EP3) 2001 - 2005 (5 products)
Civic Type R (FK8) 2017 - 2021 (5 products)
Civic Type R (FL5) 2022 - Present (5 products)
Civic Type R (FN2) 2007 - 2011 (5 products)
Cooper (F55 | F56 | F57) 2013 - 2024 (6 products)
Cooper (R50 | R52 | R53 | GP1) 2001 - 2008 (4 products)
Cooper (R56 | R57 | GP2) 2006 - 2015 (4 products)
Integra Type R (DC5) 2001 - 2006 (4 products)
NSX (NA 1/2) 1990 - 2005 (5 products)
S2000 (AP1 | AP2) 1999 - 2009 (6 products)
GR Yaris Gen 1 (2020 - 2024) (23 products)
350Z | Fairlady Z (Z33) 2002 - 2008 (6 products)
A3 (8P) 2003 - 2014 (6 products)
BRZ (Z10) 2012 - 2021 (5 products)
BRZ (ZD8) 2021 - Present (5 products)
Clio III RS 2005 - 2012 (4 products)
Elise (S1) 1996 - 2001 (5 products)
Elise (S2) 2001 - 2011 (5 products)
Golf MK5 (1K) 2003 - 2010 (5 products)
Golf MK6 (5K) 2008 - 2013 (5 products)
Golf MK7 (5G) 2012 - 2020 (4 products)
Golf MK8 (CD1) 2019 - Present (5 products)
GR86 (ZN8) 2022 - Present (5 products)
GT86 (ZN6) 2012 - 2016 (5 products)
GTR (R35) 2007 - Present (4 products)
Impreza 3rd Gen (GE|GH|GR|GV) 2007 - 2011 (6 products)
Lancer Evolution IX (CT9A) 2005 - 2007 (5 products)
Lancer Evolution VII (CT9A) 2001 - 2003 (5 products)
Lancer Evolution VIII (CT9A) 2003 - 2005 (5 products)
Lancer Evolution X (CZ4A) 2007 - 2016 (5 products)
Scirocco MK3 (1K) 2008 - 2017 (5 products)
Silvia (S14) 1993 - 2000 (6 products)
Silvia (S15) 1999 - 2002 (6 products)
TT MK2 (8J) 2006 - 2014 (5 products)
TT MK3 (FV/8S) 2014 - 2023 (5 products)
WRX STI 1st Gen (VA) 2015 - 2021 (4 products)
GR Supra MK5 (A90) 2019 - Present (3 products)
Impreza 2nd Gen (GD) 2000 - 2007 (14 products)
R8 Gen 2 (Type 4S) 2015 - 2024 (4 products)
718 (4 products)
370Z | Fairlady Z (Z34) 2008 - 2021 (5 products)
Accord (CL7) 2002 - 2008 (4 products)
GT-R (R32) 1989 - 1994 (5 products)
Model 3 (5YJ3) 2017 - Present (8 products)
Porsche Other (16 products)
Supra MK4 (A80) 1993 - 2002 (4 products)
GR Yaris Gen 2 (2024+) (2 products)
EV performance (8 products)
EV upgrades (8 products)
lowering (4 products)
Model S (5 products)
Model X (4 products)
PWRD (8 products)
stance (8 products)
suspension (8 products)

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Lowering Springs (43 products)
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AST (444 products)
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703 products

STG GR Yaris Height Adjustable Spring Kit

Sold out

STG GR Yaris Height Adjustable Spring Kit

Regular price From £579.17 GBP

Regular price Sale price From £579.17 GBP

Sold out
AST Adjustable Drop Links - BMW 1 Series F20 | F21 (M135i & M140i)

AST Adjustable Drop Links - BMW 1 Series F20 | F21 (M135i & M140i)

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST 4100 Toyota GR Yaris Coilover Suspension Kit (String Theory Signature Series)

AST 4100 Toyota GR Yaris Coilover Suspension Kit (String Theory Signature Series)

Regular price From £2,241.67 GBP

Regular price ~~£2,216.00 GBP~~ Sale price From £2,241.67 GBP
MMX Height Adjustable Lowering Springs - BMW M2 (G87) 2021 - Present

MMX Height Adjustable Lowering Springs - BMW M2 (G87) 2021 - Present

Regular price £739.19 GBP

Regular price Sale price £739.19 GBP
Hardrace Rear Differential Anti Vibration Insert - Toyota GR Yaris

Hardrace Rear Differential Anti Vibration Insert - Toyota GR Yaris

Regular price £58.25 GBP

Regular price Sale price £58.25 GBP
STG Chassis Package - GR Yaris Gen 1

Sale

STG Chassis Package - GR Yaris Gen 1

Regular price £3,208.33 GBP

Regular price ~~£3,406.98 GBP~~ Sale price £3,208.33 GBP

Sale
AST Adjustable Drop Links - BMW M4 G82 | G83

AST Adjustable Drop Links - BMW M4 G82 | G83

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST Adjustable Drop Links - BMW M3 G80 | G81

AST Adjustable Drop Links - BMW M3 G80 | G81

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST Adjustable Drop Links - BMW M3 F80 | F81

AST Adjustable Drop Links - BMW M3 F80 | F81

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST Adjustable Drop Links - BMW M2 F87

AST Adjustable Drop Links - BMW M2 F87

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST Adjustable Drop Links - Toyota GR Yaris

AST Adjustable Drop Links - Toyota GR Yaris

Regular price £150.00 GBP

Regular price Sale price £150.00 GBP
AST Suspension Double Digressive Valve Option

AST Suspension Double Digressive Valve Option

Regular price £400.00 GBP

Regular price Sale price £400.00 GBP
AST Suspension 5200 2-way Adjustable Inverted Coilovers - BMW 1 Series F20/F21 (2WD)

Sale

AST Suspension 5200 2-way Adjustable Inverted Coilovers - BMW 1 Series F20/F21 (2WD)

Regular price £4,083.33 GBP

Regular price ~~£4,250.00 GBP~~ Sale price £4,083.33 GBP

Sale
AST Suspension 5100 Street 1-way Adjustable Coilovers - Honda Integra Type R (DC5)

Sale

AST Suspension 5100 Street 1-way Adjustable Coilovers - Honda Integra Type R (DC5)

Regular price From £2,666.67 GBP

Regular price ~~£2,760.00 GBP~~ Sale price From £2,666.67 GBP

Sale
AST Adjustable Lowering Springs - BMW M2 (G87) 2021 - Present

Sale

AST Adjustable Lowering Springs - BMW M2 (G87) 2021 - Present

Regular price £750.00 GBP

Regular price ~~£780.00 GBP~~ Sale price £750.00 GBP

Sale
AST Adjustable Lowering Springs - BMW 3 Series (G80 / G81) M3 | M3 Touring (2021 - Present)

Sale

AST Adjustable Lowering Springs - BMW 3 Series (G80 / G81) M3 | M3 Touring (2021 - Present)

Regular price £750.00 GBP

Regular price ~~£780.00 GBP~~ Sale price £750.00 GBP

Sale
Ohlins Road & Track DFV 1 Way Coilovers - Toyota GR Yaris

Ohlins Road & Track DFV 1 Way Coilovers - Toyota GR Yaris

Regular price £2,833.33 GBP

Regular price Sale price £2,833.33 GBP
Hardrace Rear Upper Camber Arm Kit - Tesla Model S | Model X

Hardrace Rear Upper Camber Arm Kit - Tesla Model S | Model X

Regular price £714.24 GBP

Regular price Sale price £714.24 GBP
Hardrace Front Upper Camber Arm Kit - Tesla Model S (2012 - 2021)

Hardrace Front Upper Camber Arm Kit - Tesla Model S (2012 - 2021)

Regular price £801.24 GBP

Regular price Sale price £801.24 GBP
Hardrace Rear Anti Roll Bar 25.4mm - Tesla Model S | X (2021 Onwards)

Hardrace Rear Anti Roll Bar 25.4mm - Tesla Model S | X (2021 Onwards)

Regular price £263.86 GBP

Regular price Sale price £263.86 GBP
Hardrace Rear Anti Roll Bar 22mm - Tesla Model 3

Hardrace Rear Anti Roll Bar 22mm - Tesla Model 3

Regular price £329.83 GBP

Regular price Sale price £329.83 GBP
Hardrace Front Anti Roll Bar 32mm - Tesla Model 3

Hardrace Front Anti Roll Bar 32mm - Tesla Model 3

Regular price £263.86 GBP

Regular price Sale price £263.86 GBP
Hardrace Rear Adjustable Toe Arm Kit - Tesla Model 3

Hardrace Rear Adjustable Toe Arm Kit - Tesla Model 3

Regular price £198.19 GBP

Regular price Sale price £198.19 GBP
Hardrace Rear Adjustable Camber Arm Kit - Tesla Model 3

Hardrace Rear Adjustable Camber Arm Kit - Tesla Model 3

Regular price £198.19 GBP

Regular price Sale price £198.19 GBP

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