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.

124 products