Performance & Customization
Built for Your Weekend Drive

From suspension and braking to wheels, tires, and performance upgrades, Sunday Spec delivers tailored solutions for enthusiasts who expect more from their vehicle.

For Drivers Who Want More From Their Vehicle

Sunday Spec focuses on performance upgrades and custom builds for enthusiasts who care about how their vehicle looks, feels, and drives. From subtle refinements to fully customized setups, we take a thoughtful approach to every project - prioritizing quality, fitment, and long-term performance.

Performance Upgrades

Unlock more power and responsiveness with carefully selected bolt-on upgrades and tuning solutions.

Intake & Exhaust Systems
Performance Camshafts & Valvetrain Upgrades
Forced Induction Systems
Cooling System Upgrades
ECU & TCU Tuning
Explore Performance Upgrades

Suspension & Handling Upgrades

Improve ride quality, control, and overall driving feel with suspension systems tailored to your vehicle and driving style.

Coilovers & Lowering Springs
Shocks & Struts
Air Suspension Systems
Control Arms & Bushings
Sway Bars & Endlinks
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Lift Kits & Leveling Kits

Achieve the right stance, clearance, and capability for your truck, Jeep or SUV with properly selected and installed lift and leveling systems.

Coilover Lift Kits
Leaf Spring Lift Kits
Leveling Kits
Supporting Arms & Bushings
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Wheel & Tire Packages

Dial in the look and performance of your vehicle with properly matched wheels and tires built around your goals and fitment.

Custom Wheel & Tire Packages
Mounting & Balancing
Fitment & Sizing Guidance
TPMS Sensors & Programming
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Braking Upgrades

Enhance stopping power and confidence with braking solutions designed for performance, daily driving, or spirited use.

Big Brake Kits
Performance Pads & Rotors
Stainless Brake Lines
High-Temp Brake Fluid
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Truck & Off-Road Upgrades

Build capability and durability for utility, off-road, and overland use with upgrades designed for real-world conditions.

Truck Bed Accessories
Step Bars, Fender Flares, & Body Armor
Recovery Equipment
Lighting & Accessories
Overlanding Accessories
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Exterior Styling

Enhance the look, presence, and overall style of your vehicle with exterior upgrades designed to create a more cohesive and finished appearance.

Spoilers, Wings, Splitters, & Side Skirts
Body Kits & Aero Components
Window Tint
Vinyl Wrap & Exterior Accents
Exterior Trim & Finishing Details
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Photo - Mounted

Interior Styling

Refine comfort, driver experience, and overall cabin feel with interior upgrades designed to enhance how your vehicle looks, feels, and functions every time you drive.

Interior LED Lighting
Seats & Steering Wheels
Audio Upgrades
Gauges & Driver Displays
Floor Mats & Interior Protection
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Maintenance & Inspections

Focused maintenance, diagnostics, and pre-purchase inspections for enthusiast and modified vehicles to keep everything performing as it should.

Scheduled Maintenance & Fluid Services
Performance-focused Maintenance for Modified Vehicles
Pre-purchase Inspections
Diagnostics and System Checks
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A Thoughtful Approach to Every Build

Consultation & Goals

We start by understanding your vehicle, how you use it, and what you want to improve. Whether it is performance, ride quality, or overall look, everything begins with a clear direction.

Planning & Parts Selection

Every build is carefully planned to ensure proper fitment, performance, and reliability. We help select components that work together as a complete system, not just individual parts.

Installation & Final Setup

Installation is completed with attention to detail, followed by final checks and adjustments to make sure everything performs as intended before the vehicle leaves the shop.

Four cars parked on a desert road with mountains in the background

Built for a Broad Range of Enthusiast Vehicles

We offer services for domestic, European, and Japanese performance vehicles, as well as trucks, SUVs, and Jeeps. Whether modifying a sport sedan or an adventure vehicle, our focus is on performance both on or off-road