PRM Eurowerks (773) 366-5424

German performance, installed properly.

Bolt-ons, flashes and full builds for German cars. We spec the parts with you, install them properly, and check everything before the car goes home.

BMW engine bay with yellow silicone charge pipes during a PRM performance build

How a build starts

Every build starts with a conversation, not a parts list. Tell us how you drive the car: daily, weekend drives, autocross, or a few track days a year. That answer decides the order things go on, because a stage 2 tune on tired coil packs and a slipping clutch is money in the wrong place.

We look at the car first, check the basics that a tune will expose, then lay out a plan you can do in steps. Some people do it all in one visit. Most do it over a season.

What we install

  • ECU flashes on established platforms, stage 1 and 2, plus piggyback setups
  • Intake and charge pipe upgrades, including carbon intakes and aluminum or titanium charge pipes
  • Downpipes and exhaust, from cat-backs to full turbo-back systems
  • Intercoolers and cooling for cars that see heat soak or track time
  • Coilovers, springs and sway bars, set to a ride height you can actually live with
  • Aero and exterior: spoilers, carbon parts and lighting
  • Supporting mods: plugs gapped for boost, coils, clutch and fuel upgrades when the power calls for it

Bring your own parts, or have us source them

You can bring parts you already bought, and we will tell you straight if something is wrong for your car before it goes on. Or we source them, which usually means fewer surprises with fitment and a single person to call if something is off.

Common questions

Will a tune void my warranty?

It can affect powertrain claims. Under federal law the manufacturer has to show the modification caused the failure, but in practice flashes are detectable and dealers do push back. We talk it through before anything is flashed, so you go in knowing the risk.

Can I bring my own parts?

Yes. We will check them against your car before install and tell you if anything looks wrong. Labor is the same either way.

Do you only work on BMWs?

No. A lot of our build work is BMW, but we work on Mercedes-AMG, Audi, Volkswagen and Porsche the same way.

Open Mon to Sat, 8 AM to 8 PM

Book your car in.