Golden-era performance
Motor swaps, troubleshooting, tuning, custom ECU solutions and the details that turn a collection of parts into one complete car.
Engine swapsDiagnosticsTuningFuel + ignition
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AFTER HOURS · CHARLESTOWN, INGolden-era machines.
Golden-era machines.
One-off answers.
Specializing in 1989–2003 Honda and Acura performance, custom swaps, clean wiring, tuning, ECU solutions, OEM+ integration and fabrication—with 20+ years of hands-on motorcycle work.
’89—’03Honda + Acura20+Years building motorcycles2 + 4Wheels · motor + electric
MIDNIGHT DIVISION · MHI
MOTOR SWAPSCUSTOM WIRINGOEM+ BUILDSCUSTOM ECUTUNINGFABRICATIONMOTORCYCLESSMALL ENGINES
01 THE SHOP AFTER THE SHOP
Built for the work that doesn’t fit the normal service counter.
Midnight Motors and Tuning operates after hours inside Hayes Mowers. This is where Larry takes on the custom, technical and unusual work Hayes doesn’t do during regular shop operations.
One owner. One set of hands. Every solution built around the machine—not forced out of a box.
Motorcycle builds + repair
More than two decades of hands-on motorcycle work—from diagnostics and repair to electrical, fabrication and performance builds.
BuildsDiagnosticsElectricalFabrication
The projects without a category
Two wheels or four, motor or electrical—if the normal shop answer is ‘we don’t do that,’ it may belong at Midnight.
Small enginesElectric buildsControlsOne-off fixes
1989—2003
GOLDEN ERA FOCUSOld enough to have character.
Old enough to have character.
New enough to make serious power.
Honda and Acura from the years when lightweight chassis, interchangeable powertrains and smart engineering made almost anything possible. The goal isn’t to bury that character—it’s to make the whole build work together.
02 CAPABILITIES
Factory-clean execution.
Nothing factory-standard.
Motor swaps
Mounting, integration, troubleshooting and the last ten percent that makes a swap actually work.
Custom wiring
Purpose-built harnesses, circuit repair and electrical integration—cleanly routed, correctly protected and built to be serviced.
ECU + tuning solutions
Custom control strategies, wiring and calibration solutions built around the project—not a catalog page.
One-off fabrication
Brackets, mounts, adapters and mechanical answers made for the exact machine in front of us.
THE STANDARD
OEM+ is a build style.
OEM+ means custom parts and systems made to look and function as though the factory could have built them that way. Custom wiring is a separate capability—built for the exact swap or system, then routed cleanly, protected correctly and kept serviceable.
03 PROJECT INTAKE
Bring the problem.
We’ll build the answer.
Tell us what you’re working with, what you want it to do and where the project is stuck. Midnight work is reviewed individually and scheduled after hours by appointment.
Inside Hayes Mowers130 Market Street · Charlestown, Indiana
Night shop · by appointmentProject requests are reviewed before scheduling