Skip to content

5 Star Google Reviews

Welcome to our store

Worldwide Shipping

Milltek Exhausts Now Available

Shop by Car
Shop by Brand
- A – C
  
  String Theory Garage
  ACL
  AIRTEC
  Akrapovic
  AP Racing
  ARTEC
  AST Suspension
  Bilstein
  BMC
  Carbotech Brakes
  Cargraphic
- C – F
  
  Cobra
  Coolerworx
  CP Pistons
  CSF
  CUSCO
  Denstoj
  DGS BLX
  Eibach
  Endless
  Evo Corse
  Ferodo
- G – J
  
  Garage Whifbitz
  Goodridge
  H&R
  Hardrace
  Hella
  HJS
  HKS
  iPE
  ITG
  JCR
- J – M
  
  JDM Garage UK
  Kelford Cams
  KW Suspension
  Lamspeed
  Lifeline
  Mantis
  Milltek
  Mishimoto
  MMX
  MOTON Suspension
  MOTUL
- N – R
  
  Nankang
  Nitron
  Nitto
  Ohlins
  Pagid
  PWR Advanced Cooling Technology
  PWRD
  Rally Flapz
  RAYS
  Recaro
- S – X
  
  Shortiez
  SW Motorsports
  Tarox
  TOM'S
  TSW
  Turbosmart
  Verkline
  Wagner Tuning
  Wedssport
  Xtreme
Shop by Part
- Braking
  
  Brake Discs
  Brake Pads
  Brake Hoses
- Engine & ECU
  
  ECU Map & Tuning
  Turbo
  Cooling
  Ignition Coils
  Other Engine/ECU
- Exterior & Trim
  
  Splitters & Diffusers
  Spoiler
- Intake & Exhaust
  
  Intake
  Exhaust
- Handling & Suspension
  
  Coilovers & Shock Absorbers
  Lowering Springs
  Anti Roll Bars
  Bushes and Bearings
  Roll Cage
- Seats & Interior
  
  Seats
  Harnesses
- Wheels & Tyres
  
  Wheels
  Tyres
  Spacers
- Drivetrain
  
  Gearbox & Clutch
Specialist Services
Apparel
About
Contact
Blog
AST Suspension

Country/region

Search

France GBP £
Singapore GBP £
United Kingdom GBP £
United States GBP £

Facebook
Instagram
YouTube

Search

Shop by Car
Shop by Brand
Shop by Part
Specialist Services
Apparel
About
Contact
Blog
AST Suspension

Search

Item added to your cart

View cart

Collection: BMW X Series

You are now browsing for BMW X1 X2 X3 X4... Read More

You are now browsing for BMW X1 X2 X3 X4 X5 X6 Parts & Upgrades

Here at String Theory Garage we stock a large and ever expanding range of BMW Parts. A complete range of upgrades. From Suspension upgrades to ECU tuning we have you covered.

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.

BMW X Series

Sort by:

58 products

Filter and sort Filter

Filter and sort

Filter

58 products

Sort by:

Remove all

58 products

BMW X5 M / X6 M (F85 / F86) | Akrapovic | Sound Kit

BMW X5 M / X6 M (F85 / F86) | Akrapovic | Sound Kit

Vendor:
Akrapovic

Regular price £757.84 GBP

Regular price Sale price £757.84 GBP
BMW X5 M/X6 M (F85/F86) | Akrapovic | Evolution Line Exhaust System (Titanium)

Sold out

BMW X5 M/X6 M (F85/F86) | Akrapovic | Evolution Line Exhaust System (Titanium)

Vendor:
Akrapovic

Regular price £7,349.54 GBP

Regular price Sale price £7,349.54 GBP

Sold out
Cargraphic Exhaust Valve Controller for BMW G8X & F8X M2 M3 M4

Cargraphic Exhaust Valve Controller for BMW G8X & F8X M2 M3 M4

Vendor:
Cargraphic

Regular price £469.00 GBP

Regular price Sale price £469.00 GBP
Eibach Pro-Kit Lowering Springs - BMW X3 M (F97)

Eibach Pro-Kit Lowering Springs - BMW X3 M (F97)

Vendor:
Eibach

Regular price £424.68 GBP

Regular price Sale price £424.68 GBP
Eibach Pro-Kit Lowering Springs - BMW X4 M (F98)

Eibach Pro-Kit Lowering Springs - BMW X4 M (F98)

Vendor:
Eibach

Regular price £424.68 GBP

Regular price Sale price £424.68 GBP
Eibach Pro-Kit Lowering Springs - BMW X5 M (F85) / X6 M (F86)

Eibach Pro-Kit Lowering Springs - BMW X5 M (F85) / X6 M (F86)

Vendor:
Eibach

Regular price From £274.89 GBP

Regular price Sale price From £274.89 GBP
Eibach Pro-Kit Lowering Springs - BMW X6 M (F86)

Eibach Pro-Kit Lowering Springs - BMW X6 M (F86)

Vendor:
Eibach

Regular price From £274.89 GBP

Regular price Sale price From £274.89 GBP
Eibach Pro-Tronic Electronic Damper Module - BMW X3 M (F97)

Eibach Pro-Tronic Electronic Damper Module - BMW X3 M (F97)

Vendor:
Eibach

Regular price £411.91 GBP

Regular price Sale price £411.91 GBP
Eibach Pro-Tronic Electronic Damper Module - BMW X4 M (F98)

Eibach Pro-Tronic Electronic Damper Module - BMW X4 M (F98)

Vendor:
Eibach

Regular price £411.91 GBP

Regular price Sale price £411.91 GBP
Eibach Pro-Tronic Electronic Damper Module - BMW X5 M (F85)

Eibach Pro-Tronic Electronic Damper Module - BMW X5 M (F85)

Vendor:
Eibach

Regular price £411.91 GBP

Regular price Sale price £411.91 GBP
Eibach Pro-Tronic Electronic Damper Module - BMW X6 M (F86)

Eibach Pro-Tronic Electronic Damper Module - BMW X6 M (F86)

Vendor:
Eibach

Regular price £411.91 GBP

Regular price Sale price £411.91 GBP
Endless MX72 Plus Front Brake Pad BMW G42, G20, G22, G30, F97, F98, G29

Endless MX72 Plus Front Brake Pad BMW G42, G20, G22, G30, F97, F98, G29

Vendor:
Endless

Regular price £230.70 GBP

Regular price Sale price £230.70 GBP
MMR 4-pinned single piece crank hub for BMW N55 & S55

MMR 4-pinned single piece crank hub for BMW N55 & S55

Vendor:
MMX

Regular price From £818.99 GBP

Regular price Sale price From £818.99 GBP
MMX Billet Aluminium Fuel Filler Cap for all BMW Models

MMX Billet Aluminium Fuel Filler Cap for all BMW Models

Vendor:
MMX

Regular price £104.83 GBP

Regular price Sale price £104.83 GBP
MMX Billet Aluminium Oil Filler Cap Gloss Black - BMW - 11128655331

MMX Billet Aluminium Oil Filler Cap Gloss Black - BMW - 11128655331

Vendor:
MMX

Regular price £98.27 GBP

Regular price Sale price £98.27 GBP
MMX Billet Gear Shift Knob for BMW (All 6 Speed Manual Cars)

MMX Billet Gear Shift Knob for BMW (All 6 Speed Manual Cars)

Vendor:
MMX

Regular price £125.99 GBP

Regular price Sale price £125.99 GBP
MMX Billet rear subframe inserts for BMW F2x & F3x

MMX Billet rear subframe inserts for BMW F2x & F3x

Vendor:
MMX

Regular price £207.89 GBP

Regular price Sale price £207.89 GBP
MMX Gear shift paddles | F Series | Titanium Magnetic Paddle Inc Fitting kit

MMX Gear shift paddles | F Series | Titanium Magnetic Paddle Inc Fitting kit

Vendor:
MMX

Regular price From £269.99 GBP

Regular price Sale price From £269.99 GBP
MMX Gear shift paddles | G Series | Titanium Magnetic Paddle Inc Fitting kit

MMX Gear shift paddles | G Series | Titanium Magnetic Paddle Inc Fitting kit

Vendor:
MMX

Regular price From £269.99 GBP

Regular price Sale price From £269.99 GBP
MMX Hubcentric Wheel Spacers for BMW F-Series 12mm | 15mm

MMX Hubcentric Wheel Spacers for BMW F-Series 12mm | 15mm

Vendor:
MMX

Regular price From £94.49 GBP

Regular price Sale price From £94.49 GBP
MMX Locking Tapered Seat Wheel Nut Kit for BMW

MMX Locking Tapered Seat Wheel Nut Kit for BMW

Vendor:
MMX

Regular price £39.98 GBP

Regular price Sale price £39.98 GBP
MMX Lowering Springs for BMW X4 M F98

MMX Lowering Springs for BMW X4 M F98

Vendor:
MMX

Regular price £358.80 GBP

Regular price Sale price £358.80 GBP
MMX Magnetic oil sump plug for BMW & MINI

MMX Magnetic oil sump plug for BMW & MINI

Vendor:
MMX

Regular price £29.04 GBP

Regular price Sale price £29.04 GBP
MMX O-Ring Service Kit - S58 Oil Filter & Housing

MMX O-Ring Service Kit - S58 Oil Filter & Housing

Vendor:
MMX

Regular price £8.71 GBP

Regular price Sale price £8.71 GBP

1
2
3

Quick links

Search
Delivery & Returns
Contact

Broke-Smith Motorsport Ltd is a company registered in England and Wales with Company number 08407237

Facebook
Instagram
YouTube

Payment methods

© 2026, String Theory Garage

Choosing a selection results in a full page refresh.
Opens in a new window.