BMW X3 M40i mods and performance parts
610 parts for the G01 BMW X3 M40i (B58 3.0L turbo inline-six), grouped by what you are changing. Each page lists the options by brand and part number and links to the retailer for price and fitment.
Fitment: Listings are read from the retailer's G01 X3 M40i category. Confirm model year and the pre- or post-update (LCI) bumper on the retailer page before ordering.
Exhaust
BMW X3 M40i exhaust systems →
30 parts from 8 brands. Cat-back and axle-back systems, mufflers, tips and valve controllers. A cat-back replaces the exhaust from the catalytic converter rearward. An axle-back replaces only the rear section.
BMW X3 M40i downpipes →
6 parts from 5 brands. The downpipe joins the turbocharger outlet to the rest of the exhaust. Aftermarket versions are sold with a high-flow catalytic converter or without one.
BMW X3 M40i exhaust tips →
83 parts from 5 brands. Clamp-on and weld-on exhaust tips. Most are universal parts sized by inlet and outlet diameter, not made for one car.
Engine
BMW X3 M40i intakes →
18 parts from 13 brands. Replacement intake systems, airboxes and filters.
BMW X3 M40i charge pipes →
9 parts from 6 brands. Replacement pipes for the pressurised intake tract between the turbocharger, intercooler and throttle body.
BMW X3 M40i tunes & engine software →
34 parts from 12 brands. Engine and transmission software, flash tuners, piggyback modules and throttle controllers.
BMW X3 M40i turbochargers & turbo parts →
36 parts from 10 brands. Turbochargers, turbo kits, inlets and related hoses.
BMW X3 M40i fuel & ignition →
50 parts from 17 brands. Fuel pumps, injectors, flex-fuel kits, ignition coils and spark plugs.
BMW X3 M40i cooling upgrades →
26 parts from 5 brands. Radiators, oil coolers, expansion tanks and hoses sold as upgrades.
BMW X3 M40i engine & mounts →
51 parts from 15 brands. Engine and transmission mounts, catch cans, pulleys and internal engine parts.
BMW X3 M40i drivetrain →
2 parts from 2 brands. Axles, driveshafts, differentials and limited-slip units.
Suspension
BMW X3 M40i coilovers →
7 parts from 3 brands. Height-adjustable spring and damper assemblies.
BMW X3 M40i lowering springs →
1 part from 1 brand. Shorter springs that lower ride height on the factory or aftermarket dampers.
BMW X3 M40i suspension & chassis →
14 parts from 10 brands. Sway bars, control arms, bushings, strut braces, dampers and alignment parts.
Brakes
Wheels
Exterior
BMW X3 M40i front lips & splitters →
2 parts from 2 brands. Front lips and splitters that attach to the lower edge of the front bumper.
BMW X3 M40i spoilers & wings →
3 parts from 3 brands. Trunk spoilers, roof spoilers and wings.
BMW X3 M40i exterior & aero →
33 parts from 8 brands. Grilles, mirror caps, side skirts, emblems and other exterior parts.
