Golden-era performance car inside an after-hours tuning and fabrication shop

AFTER HOURS · CHARLESTOWN, IN

Engines. Electrical.
Fabrication.

Repair, service and custom solutions for anything with a motor. Gas or electric. Two-stroke, four-stroke or diesel. From everyday repairs to modified cars and one-off builds—with a specialty in golden-era Honda and Acura tuning.

’89—’03Honda + Acura Gas + electricEngines, motors + controls 2 + 4 strokePlus diesel equipment
CHARLESTOWN · AFTER HOURS
ENGINE REPAIRCUSTOM ELECTRICALTUNINGWELDINGCNCLASER CUTTING3D PRINTING

If it has a motor,
let’s talk.

Midnight Tuning offers engine, electrical and mechanical repair alongside custom tuning and fabrication in Charlestown, Indiana. Cars, equipment and unusual projects are all welcome—from routine service to solving a problem that takes more than a replacement part.

Practical repairs. Custom solutions. Attention to detail. Our capabilities run from engines and wiring to circuit boards and custom parts, with each project reviewed around what the vehicle, machine or build needs.

01CARS + CUSTOM BUILDS
GOLDEN-ERA HONDA + ACURA SPECIALISTS

Stock, swapped or modified.

Repair and service for everyday cars, custom cars and modified builds. Specializing in 1989–2003 Honda and Acura diagnostics, engine swaps, custom ECU solutions and tuning.

Repair + serviceEngine swapsECU tuningOEM+ builds
02MOTORCYCLES + POWERSPORTS
TWO-STROKE · FOUR-STROKE · ELECTRIC

Built to get moving.

Motorcycle and powersports repair, service and custom work. Engine and carburetor tuning, electrical troubleshooting and mechanical repairs for stock machines and custom builds.

MotorcyclesPowersportsCarburetorsElectrical
03MACHINERY + SMALL ENGINES
GAS · DIESEL · ELECTRIC

Keep your equipment working.

Repair and service for farm machinery, lawn mowers, small engines and two-cycle equipment. Electrical and mechanical troubleshooting for the machines you depend on.

Farm machineryLawn mowersTwo-cycle equipmentElectric motors
1989—2003

GOLDEN ERA FOCUS

Golden-era Honda & Acura.
Custom solutions, deep roots.

Specialized repair and custom tuning solutions for 1989–2003 Hondas and Acuras. From diagnosing a drivability issue to integrating an engine swap, setting up a custom ECU or dialing in a modified build, the focus is making every part of the car work together.

Repair it. Tune it.
Build what’s missing.

01

Engine repair + service

Diagnostics, maintenance, mechanical repairs and engine swaps for cars and equipment. Gas, diesel, two-stroke and four-stroke engines.

02

Expert wiring + electronics

Expert wiring, diagnostics and custom electrical solutions for vehicles and equipment. From relays, switches, buttons and gauges to electronics and add-ons, we build clean, organized systems that work together. Our Honda and Acura swap capabilities include OBD0-to-OBD1 and OBD2-to-OBD1 wiring conversions.

03

PCB + control module services

Electronics expertise down to the component level: printed circuit board (PCB) design, repair and modification, including surface-mount components. We also handle ECU repair, flashing and tuning, plus powertrain control module (PCM) and other control-module flashing.

04

Engine + carburetor tuning

Custom tuning solutions, carburetor setup and troubleshooting, fuel and ignition diagnostics, and ECU solutions tailored to your engine and modifications.

05

Fabrication + welding

Custom brackets, mounts, adapters and one-off parts, plus welding and fabrication for vehicle builds, equipment repairs and mechanical projects.

06

CNC + laser cutting

Custom-cut parts and project components using CNC and laser cutting. Share your design, dimensions and intended use so we can work through the details.

07

3D printing + custom parts

3D printing for prototypes, custom parts and project-specific solutions. Through partnerships with specialist facilities, we also offer access to aerospace-grade metal 3D printing for projects that require advanced materials and manufacturing capabilities.

08

Equipment repair

Electrical and mechanical repair for farm machinery, lawn equipment, motorcycles, powersports and small engines—including two-cycle equipment and electric-powered machines.

Bring the problem.
We’ll build the answer.

Tell us what you’re working on and what it needs—repair, service, tuning, electrical work, fabrication or 3D printing. We review each project individually and schedule after-hours appointments.

Inside Hayes Mowers130 Market Street · Charlestown, Indiana
Night shop · by appointmentProject requests are reviewed before scheduling
APPOINTMENT REQUEST

Let’s talk about your project.

Use Midnight Tuning’s request page on Mow Hard to share your vehicle, equipment or custom project, the work you need and how to reach you.

  1. Tell us about it. For vehicles and equipment, include the year, make, model, power type and symptoms. For fabrication or 3D printing, describe the part’s purpose, material and dimensions if known.
  2. We review the request. We discuss scope, availability and next steps with you.
  3. Confirm a time. Visits and drop-offs are by appointment. A request does not reserve a time until confirmed.
Open appointment request
Front and back of the black Midnight Tuning shirt with a red Integra and Louisville skyline

MIDNIGHT TUNING · LIMITED RUN

The night run tee.

$25 plus shipping

Black tee. Louisville nightscape. Red eyes, white knuckles, no lift.

Text to claim yours Ask about available sizes and shipping before ordering.