F2x M135i/M140i

Upgrades for BMW M135i/M140i (F20/F21). High-flow downpipes, intercoolers, charge pipes, suspension and braking improvements for road and track builds.

Shop Related Upgrades

Downpipes | Intercoolers | Charge Pipes | Springs | Brake Pads | ECU Tuning

FAQs
What are the best first mods for an M135i/M140i?

Popular upgrades include downpipes, intercoolers, charge pipes, and springs.

Is the B58/N55 reliable when tuned?

Yes — with proper cooling upgrades and regular maintenance.

Do F20/F21 parts fit both LCI and pre-LCI models?

Most performance parts fit both, but always check product fitment to confirm.

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132 products

Genuine BMW Rear Brake Disc – 34206898719 – 1 / 2 / 3 / 4 Series (M135i / M140i / M235i / M240i / 335i / 340i / 435i / 440i)
BMW
Genuine BMW Rear Brake Disc – 34206898719 – 1 / 2 / 3 / 4 Series (M135i / M140i / M235i / M240i / 335i / 340i / 435i / 440i) Sale price£269.00
Genuine BMW Front Brake Disc – 34116792223 – 1 / 2 / 3 / 4 Series (M135i / M140i / M235i / M240i / 335i / 340i / 435i / 440i)
BMW
Genuine BMW Front Brake Disc – 34116792223 – 1 / 2 / 3 / 4 Series (M135i / M140i / M235i / M240i / 335i / 340i / 435i / 440i) Sale price£299.00
Sold outSave £34.00
Dorch Engineering B58 Gen1 Flex Fuel ECA – Plug & Play
Dorch Engineering
Dorch Engineering B58 Gen1 Flex Fuel ECA – Plug & Play Sale price£565.00 Regular price£599.00
Sold outSave £55.00
Dorch Engineering B58 Gen1 DS3 HPFP Upgrade
Dorch Engineering
Dorch Engineering B58 Gen1 DS3 HPFP Upgrade Sale price£1,795.00 Regular price£1,850.00
Sold outSave £50.00
Dorch Engineering B58 Gen1 DS25 HPFP Upgrade
Dorch Engineering
Dorch Engineering B58 Gen1 DS25 HPFP Upgrade Sale price£1,300.00 Regular price£1,350.00
Ferodo DS2500 Rear Brake Pads – BMW M2 / M3 / M4 & M Lite
Ferodo Brakes
Ferodo DS2500 Rear Brake Pads – BMW M2 / M3 / M4 & M Lite Sale price£157.00
Ferodo DS2500 Front Brake Pads – BMW M2 / M3 / M4 & M Lite
Ferodo Brakes
Ferodo DS2500 Front Brake Pads – BMW M2 / M3 / M4 & M Lite Sale price£177.00
Save £21.00
NGK 94201 Performance Spark Plugs – BMW B58 (Pack of 6)
NGK
NGK 94201 Performance Spark Plugs – BMW B58 (Pack of 6) Sale price£99.00 Regular price£120.00
EBC Brake Discs & Pads Track Package – BMW F-Series M Lite
EBC
EBC Brake Discs & Pads Track Package – BMW F-Series M Lite Sale priceFrom £675.00
Save £10.00
EBC GD Sport Rear Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i
EBC
EBC GD Sport Rear Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i Sale price£560.07 Regular price£570.07
Save £10.00
EBC GD Sport Front Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i
EBC
EBC GD Sport Front Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i Sale price£629.94 Regular price£639.94
Sold outSave £10.00
EBC USR Slotted Rear Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i
EBC
EBC USR Slotted Rear Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i Sale price£166.94 Regular price£176.94
Sold outSave £10.00
EBC USR Slotted Front Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i
EBC
EBC USR Slotted Front Brake Discs – BMW F-Series M135i / M140i / M235i / M240i / 335i / 440i Sale price£184.66 Regular price£194.66
Sold outSave £16.00
Bimecc BMW Wheel Spacer Kit – F-Series
Bimecc
Bimecc BMW Wheel Spacer Kit – F-Series Sale price£164.00 Regular price£180.00
Color
Brake Fluid & Braided Lines Package – BMW M Lite
Track Warrior Mods
Brake Fluid & Braided Lines Package – BMW M Lite Sale priceFrom £145.00
N55 Stage 1 Tune Package
Track Warrior Mods
N55 Stage 1 Tune Package Sale priceFrom £449.00
B58 Stage 1 Tune Package
Track Warrior Mods
B58 Stage 1 Tune Package Sale priceFrom £455.00
B58 Stage 2 Package
Track Warrior Mods
B58 Stage 2 Package Sale priceFrom £669.00
ITG Performance Air Filter – BMW N55 M135i / M235i / M2 / 335i / 435i
ITG Air Filters
ITG Performance Air Filter – BMW N55 M135i / M235i / M2 / 335i / 435i Sale price£54.34
Motul RBF 600 Racing Brake Fluid 500ml
Motul
Motul RBF 600 Racing Brake Fluid 500ml Sale price£16.00
Motul RBF 700 Racing Brake Fluid 500ml
Motul
Motul RBF 700 Racing Brake Fluid 500ml Sale price£30.00
MST Performance Induction Kit – BMW N55 3.0T (1 / 2 / 3 / 4 Series & M2)
MST Performance
MST Performance Induction Kit – BMW N55 3.0T (1 / 2 / 3 / 4 Series & M2) Sale price£437.00
MST Performance Induction Kit – BMW B58 F-Series (M140i / M240i / 340i / 440i)
MST Performance
MST Performance Induction Kit – BMW B58 F-Series (M140i / M240i / 340i / 440i) Sale price£388.00
Perfco Performance Premium Wheel Spacers – BMW 1/2/3/4 Series (F2x, F3x, F8x) – 13mm Front / 16mm Rear
The Performance Company
Perfco Performance Premium Wheel Spacers – BMW 1/2/3/4 Series (F2x, F3x, F8x) – 13mm Front / 16mm Rear Sale price£190.00
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