HPRM Hub Centric HPRM Wheel Spacers (10mm, 12mm, 15mm) , Extended Bolts Included: BMW M3 / M4 / X3M / X4M (set of 2)

Our HPRM Motorsport spacers are the best-value wheel spacers on the market, period.

1set = 2 wheel spacers. 2 set needed for full car. 

Hub-centric and CNC machined from high-grade 6061-T6 aluminum alloy, finished in anodized black. Sold as a set of 2, available in 10mm, 12mm, 15mm, and 18mm — extended black wheel bolts are included, so no additional hardware is needed. (You'll need 2 sets for one vehicle — front and rear.)

Like every HPRM Motorsport product, these are backed by a lifetime warranty.

Features:

• Simple bolt-on modification — no drilling, no trimming, no special tools
• Improves looks and handling — pushes the wheel out for a flush, aggressive stance and a wider effective track
• Extended black wheel bolts included — matched length for your spacer thickness, no separate hardware order
• 6061-T6 aluminum alloy, anodized black — built for strength, not just looks
• Hub-centric fit — centers on the hub, not the lug bolts, for a vibration-free ride
• Built-in pry tabs — for easy removal, no fighting a stuck spacer
• Lifetime warranty — covers defects and fitment

In the box:

• 2x wheel spacers (thickness per your selection)
• Matched extended black wheel bolts
• All hardware needed for install — nothing else to buy

Install: Bolt-on installation over your factory hub, torqued to spec with the included extended bolts. No spacers, adapters, or aftermarket hardware beyond what's in the box. If you're not comfortable doing this yourself, any shop familiar with European wheel fitment can install these in under an hour.

HPRM Fitment Recommendations:

M3 / M4 — Stock Height

• Michelin-equipped: Aggressive — 15mm front / 12mm rear · Mild — 12mm front / 12mm rear
• Pirelli-equipped: Aggressive — 10mm front / 12mm rear · Mild — 10mm front / 10mm rear

X3M / X4M

• Stock tire setup, aggressive (near-flush): 15mm front / 15mm rear
• Stock tire setup, mild: 12mm front / 12mm rear
• Upgraded tire setup (265/40/21 front, 295/35/21 rear), mild: 12mm front / 12mm rear
• Upgraded tire setup (265/40/21 front, 295/35/21 rear), fully flush rear / wider hips: 12mm front / 15mm rear — recommended
• Upgraded tire setup (265/40/21 front, 295/35/21 rear), fully flush front and rear: 15mm front / 15mm rear

These are starting points based on common builds — your exact clearance depends on offset, tire size, and ride height. If you're unsure which size fits your setup, email us before ordering and we'll help you land on the right pair.

18mm is available for builds needing extra clearance beyond the combinations above — email us before ordering at this size so we can confirm it works with your wheel offset and fender setup.

Specs:

• Center Bore: 66.6mm
• Bolt Thread Size: M14 x 1.25
• Bolt Pattern: 5x112

Fits:

• 3 Series / M3 — G20/G21, G80/G81
• 4 Series / M4 — G22/G23/G26, G82/G83
• X3 / X3M — G01, F97
• X4 / X4M — G02, F98

30-day fitment guarantee, if these don't fit your exact chassis and setup, we'll make it right.

Questions about fitment, spacer size, or your specific tire/offset combo? Email us — a real person reads every message and we reply within 24 hours.

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