Black BMW in front of the Eins Motorsports wall
Independent BMW performance & repair · Bensenville, IL

We speak
fluent turbo.

Flex fuel, custom tuning, turbo builds and the repairs that keep it all alive. A small crew that would rather be under your car than behind a desk. Twenty minutes from the Loop, five from O'Hare.

S55 F80 M3 · M4S58 G80 M3 · M4 · M2B58 340i · M340i · SupraN54 335i · 135iS65 E92 M3
Text or call(708) 707-9756
New · the Build Lab

Spec your build.
Hear it before you buy it.

Pick your car, start the engine, hold to rev. Tick the parts and watch the power range, the curve and the reliability bar move. Set a goal and it tells you exactly which combo gets you there, then text us the build.

  • N54 · N55 · B46/B48 · B58 · S55 · S58 · S65 · N63 · S63
  • Real combos and real ranges, not Lego math
  • Works on your phone, no download
The Eins Build Lab: a 3D S58 engine at redline with its power curve and tachStart engine
Pick your engine

Platform specialists, not generalists.

Every one of these has its own failure points, its own tuning quirks, and its own parts that are worth the money. We know them by heart, because they're what's on the lifts every day.

What we do

Power, and the stuff that keeps power alive.

Shop floor: two lifts, cars up, parts laid out below
How it goes

No blind quotes.
No surprise bills.

Text us

What the car is, what it's doing, what you want out of it. Photos help.

We ask questions

Annoying ones. Fuel, mods, history, how you drive it. That's how the quote ends up right.

You get a number

A real one. It doesn't move unless the car surprises us, and you hear about that first.

Photos while it's apart

You see what we see. Old bearings, the crank hub, the leak. Then you drive it home.

Also on the lifts

Lamborghini. McLaren. AMG.

Independent service, pre-purchase inspections and performance work for the cars the dealer charges by the hour to look at. Same crew, same photos-while-it's-apart habit, same phone number.

Recent work

Builds.

A few of the cars that have been through lately. The full feed is on Instagram, updated whenever something interesting is on the lift.

Ready when you are.

Text the shop, book a slot, or just call and talk to a human who's seen your engine before.