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A black E36 BMW M3 raised on a four-post lift in the shop
German electrical specialists

We FindThe Gremlin.

We chase the electrical faults other shops hand back — then tune, fabricate, and build the rest. Anywhere in Florida, with no shop for you to drive to.

Mobile across Florida
Who we are

We take theweird onesseriously.

GOON Auto Performance is owner-run, mobile, and built around the work most shops route around. Electrical. Wiring, harnesses, CAN bus, coding, retrofits — the invisible half of a modern car, and the half that decides whether it starts. We also tune, fabricate, and build things that don't exist yet, and we handle the boring maintenance nobody brags about. Different jobs, one rule: if it can be figured out, we'd rather be the ones who figure it out.
A stripped BMW S55 inline-six on an engine stand with cam-timing tools clamped to the head

The specialty

Your car isn't haunted.
It's wiring.

German cars talk to themselves constantly. Dozens of modules, miles of wire, an entire network arguing over one bad ground — and a fault code pointing somewhere the problem isn't. We read the conversation instead of replacing parts until the light goes out.

Step 01 / 04

CAN Bus & Network Faults

When the modules stop agreeing, we find the one that's lying.

Step 02 / 04

Harness Repair & Fabrication

Repinned, re-loomed, or built from scratch — soldered, sealed, and routed properly.

Step 03 / 04

Coding & Retrofits

Add the hardware, code the module, make the car believe it came that way.

Step 04 / 04

Gremlin Hunting

Intermittent no-starts, phantom draws, warnings that only show up on Tuesdays. Ours.

How it works

Four steps.One of themis yours.

  1. 01

    The Symptoms

    You tell us what it's doing, in whatever words you've got. “Makes a noise” is a valid place to start.

  2. 02

    The Diagnosis

    We scan, test, and trace until the actual cause has a name — not a guess with a part number.

  3. 03

    The Work

    Mobile at your place, or remote through your laptop. Then it's fixed, tuned, or built.

  4. 04

    Your Part

    None of it starts until you call, text, or email. That's the whole ask.

In the wild

Cars we'vehad apart.

A black E36 BMW M3 raised on a four-post lift in the shop
E36 M3. Still the correct answer.
A stripped BMW S55 inline-six on an engine stand with cam-timing tools clamped to the head
S55 out, cam timing locked.
A yellow Lamborghini Gallardo with the front hood open being worked on in the shop
Gallardo, hood up, nobody panicking.
An E36 M3 on the lift beside a modern BMW 3-series with its hood open
Modern 3 Series, mid-procedure.
A laptop running diagnostics on an E36 BMW in a Florida driveway
Driveway diagnostics. Completely normal here.
An outboard motor being lifted off the transom of a center-console boat
Yes, we pulled the outboard too.

No requesttoo ridiculous.

Most shops keep a list of things they won't touch. We keep a list of things we haven't tried yet.

Yes

Retrofit a nicer car's entire dash into this one.

Yes

Standalone-wire a chassis that hasn't been a car since 2009.

Yes

Put a BMW engine in something that will be upset about it.

Yes

Fix the fault three shops already called unfixable.

Yes

Make every light in the interior a different color.

Yes

Add a button that does something only I understand.

Yes

Also, pull the outboard off my boat while you're here.

Yes

Build the part that doesn't exist. No, there's no diagram.

There's exactly one way to find out whether we'll say yes.
Where we work

The shopwithout a shop.

No lobby, no waiting room, no TV playing the news at you for six hours. We load the tools and come to the car — your driveway, your garage, your friend's lift, the paddock — anywhere in Florida. And if you're outside the state entirely, we can still get inside your car through a laptop.

Orlando & Central Florida
Tampa Bay
Jacksonville & North Florida
Miami / Fort Lauderdale / Palm Beach
Southwest Florida — Naples & Fort Myers
Space Coast & Daytona
Everywhere else: remote.
JacksonvilleOrlandoSpace CoastTampaNaplesMiami
Before you ask

Answers,roughly.

No. BMW and German electrical is the specialty, not the limit. We work on most things with an engine — domestic, Japanese, exotic, and at least one boat.

Yes. There's no shop to drive to. We're mobile across all of Florida — your driveway, your garage, your friend's lift. Tell us where the car is sitting.

Depends entirely on the car and what it's doing. Wiring a one-off build and chasing a no-start are different planets. Send details and you'll get real numbers before anything gets touched.

Yes, anywhere. Video, screen share, fault code review, coding guidance, and telling your local shop exactly where to look. A laptop travels faster than a tow truck.

That's the best part of the inbox. Half-built, abandoned, or invented last night — describe it. Worst case, we tell you honestly that it isn't worth doing.
Start here

Tell us whatit's doing.

One message, straight to the person who'll actually be under the car.

Goes to the guy who does the work. Not a call center.
You'll get questions before you get numbers.
Replies happen as soon as we're out from under a car.