INSTALLS & SERVICES
Professional installation of suspension, brakes, exhaust, bolt-on performance, electronics, accessories, and maintenance for supported enthusiast vehicles.
CUSTOM PROJECTS
Powertrain conversions, chassis upgrades, wiring, integration, fabrication, and complete builds.
WHEELS & TIRES
Complete wheel and tire packages utilizing the industry's leading brands with expert guidance on fitment, sizing, stance, clearance, mounting, balancing, and installation.
ONLINE STORE
Shop curated performance parts, chassis components, wheels, accessories, and vehicle-specific upgrades for your next project - shipped right to your door!
FEATURED PROJECTS
Selected customer projects showcasing the planning, parts, and craftsmanship behind Sunday Spec builds.
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2000 Pontiac Trans Am
Read More408ci LSX engine
Huron Speed twin-turbo kit
Built T56 transmission/12-bolt rear end
Full aftermarket suspension
19" wheel and tire package
Custom interior -
2015 Volkswagen GTI
Read MoreAir suspension system
Custom valved exhaust system
Custom subwoofer & amplifier
Wheel & tire package -
1994 Chevrolet Corvette Convertible
*IN PROCESS*
427ci LS engine / 6L80E transmission
Holley Terminator X Max ECU
Full suspension & upgraded brakes
Custom forged wheel package
LED lighting, CarPlay, and other modernization upgrades -
1995 Chevrolet Tahoe 4x4
*IN PROCESS*
GM L86 6.2L engine / 10L80 transmission
Camshaft kit and DOD delete
Coilover suspension conversion
Upgraded wheels, tires, and brakes
LED lighting, CarPlay, and other modernization upgrades
WHY ENTHUSIASTS CHOOSE SUNDAY SPEC
Every project begins with understanding the vehicle, the customer’s goals, and how it will actually be used. We combine thoughtful planning, carefully selected components, professional installation, and clear communication to deliver a finished vehicle that works as well as it looks.