Chief’s 2008 Z06 Corvette: A Masterclass in Personalization

Have you ever met a person and known immediately that they are the real deal?

Someone with a story so rich you could listen all day, whose passion for their craft is infectious?

That’s David Apgar, better known in the Atlanta Corvette world as “The Chief.” His 2008 Corvette Z06 isn’t just a car. It’s a rolling autobiography, a testament to a life of service and an unyielding passion for America’s sports car.

From his time at sea to his days spent at car shows, David’s journey is a blueprint for what it means to be a true enthusiast.

This isn’t just about horsepower and torque; it’s about a man, his dream, and the meticulously crafted machine that brings it all together.

From Chief Petty Officer to Corvette Commander

David Apgar, known as “The Chief,” served 25 years in the United States Navy. He retired as a chief petty officer after holding four different positions, including aviation maintenance, air traffic controller, weatherman, and operations specialist.

His passion for Corvettes began when he saw a 1963 split-window Stingray, and he has since owned three Corvettes.

David Apgar’s journey into the world of Corvettes didn’t start with a high-octane build, but with a different kind of service. “When I got out of high school, the Vietnam War was in progress so instead of getting drafted,” he says, I joined the Navy.

What was supposed to be a four-year tour turned into an incredible 25-year career. During that time he served in four distinct roles and spent 15 years at sea, including deployments to the Gulf of Tonkin, the Mediterranean and the Persian Gulf.

But even while serving his country, his heart belonged to a different kind of American icon. “When I first saw the 1963 split-window Corvette, I fell in love with it,” he says. The memory as fresh as yesterday.

That’s when the “bug bit me,” and he knew he had to own more than one. Over his lifetime, he has been the proud owner of a 1978 C3, a 2005 C5, and now, his prized 2008 C6 Z06.

The Chief’s Build Philosophy: Stop Before You Go

David Apgar’s first performance modification to his 2008 Z06 was a Brembo Grand Turismo brake system. The Brembo system features six-piston calipers in the front and four in the rear. They feature large rotors to improve stopping power and reliability.

When it comes to building a high-performance car, most people go straight for the engine. They want to know what it takes to get from 505 horsepower to 600, 700, or more.

But The Chief has a different philosophy, one he learned from a veteran enthusiast. “I learned from an old Corvette guy that before you make it go fast, you should make it able to stop first,” he says with a knowing nod.

It’s a simple, yet profoundly important, piece of advice that many modders overlook.

Following that golden rule, David’s first big upgrade was a Brembo Grand Turismo brake system. The stock Z06 brakes are certainly good, but when you’re adding serious power, you need a system that can handle the increased speed.

David’s Brembo setup features massive six-piston calipers up front and four-piston calipers in the back. They’re designed to grab onto larger rotors for superior stopping power and heat dissipation.

This isn’t just about performance; it’s about safety and confidence, knowing that no matter how much power you unleash, you can bring it to a halt quickly and reliably.

The Heart of the Beast: Building Reliable Power

David’s Z06 power plant was built in three stages. The first stage involved installing a Billy Boat exhaust system, which, along with a tune, added 32 horsepower.

The second stage, a top-end build by Rob at Lamar Automotive, included air-flowed heads with an upgraded cam, valves and springs. Also, a port-matched intake and throttle body. The result is 621 horsepower to the rear wheels.

The final stage added a nitrous system for on-demand power, increasing the car’s output to 722 horsepower at the rear wheels.

With the braking system squared away, David could turn his attention to the beating heart of his Z06: the LS7 engine. He approached his build in three carefully planned stages, ensuring each step complemented the last.

Stage 1: The Billy Boat Exhaust System

David knew that to make more power, the engine needed to breathe better. “When you want to make something go fast, you got to make it breathe first,” he explains.

He chose a Billy Boat exhaust system, including headers, a mid-pipe, and a five-inch stainless steel exhaust out the back. The results were immediate and impressive. “When I took it to the dyno, I picked up 32 horsepower in the rear just from the tune and the exhaust system,” he says.

It’s a classic starting point for any performance build and a testament to the importance of a free-flowing exhaust.

Stage 2: The Lamar Automotive Top-End Build

For the next stage, David took his car to a trusted expert: Rob at Lamar Automotive. Rob has a stellar reputation for building powerful, yet reliable, engines.

During their initial consultation, Rob reassured David that as long as he didn’t exceed 800 rear-wheel horsepower, they could leave the engine’s internals—crank, rods, and pistons—stock.

The main focus was on the top end. The team at Lamar Automotive air-flowed the heads and port-matched the intake and throttle body for maximum efficiency. This methodical approach paid off handsomely.

On the dyno, the car read a stout 622 horsepower to the rear wheels.

Stage 3: On-Demand Nitrous Power

David was content for a while, but the desire for more power eventually came calling. He returned to Rob at Lamar Automotive and asked what it would take to get to 800 horsepower at the rear wheels.

Rob’s first question was a surprise: “Do you want it full-time or part-time?” David admits he was puzzled at first, but then Rob explained the genius of nitrous oxide.

As a nitrous dealer, Rob explained that an on-demand system would save him over $5,000 compared to a full-time build. He also pointed out the practical side: “How often are you going to use it?”

As David has since discovered, the answer is “not very often in town.” With the nitrous system, his Z06 now puts down a staggering 722 horsepower to the rear wheels. That pushes it to an estimated top speed of 212 mph.

Cosmetic and Aesthetic Upgrades: A Showstopper with a Racing Soul

The exterior of David Apgar’s Z06 features a Lingenfelter-designed hood with a central venting system, designed for twin-turbo setups but also beneficial for his nitrous system.

The car also has upgraded Morimoto headlights and fog lights and Eagle Eye tail lights.

The interior features a rare “light linen” accent color, custom leather on the steering wheel and shifter, and OEM-repaired driver’s seats. The car sits on Brixton Forged polished aluminum CM10 wheels (19-inch front, 20-inch rear).

While the performance numbers are impressive, what truly makes David’s Z06 a show car is its carefully chosen cosmetic upgrades. Every modification has a purpose, blending functionality with a unique aesthetic that sets the car apart.

Lingenfelter Hood and Morimoto Lighting

The first thing you notice about the front of David’s Z06 is the distinctive Lingenfelter-designed hood. With its prominent central vent, it was originally built for cars with twin-turbo setups to help with heat dissipation.

Although David uses nitrous instead of turbos, the extra airflow still helps keep the powerful LS7 cool. “It really sets the car off visually,” he says, and he’s right—the functional design gives it an aggressive, purposeful look.

To complete the modern feel, he’s swapped the factory lighting for Morimoto headlights and fog lights. In the rear, Eagle Eye tail lights round out the look. The result is a car that looks contemporary and commanding, even from a distance.

Custom Brixton Forged Wheels

No show car is complete without the perfect set of wheels. David chose Brixton Forged polished aluminum CM10 wheels, with a staggered setup of 19 inches up front and 20 inches in the rear.

These wheels are not only stunning but also lightweight, contributing to the car’s overall performance. They perfectly fill the wheel wells and complement the car’s aggressive stance.

A Unique Interior

The interior of The Chief’s Z06 is equally special. The factory accent color is a rare “4LT-light linen,” a unique shade of off-white that’s found in only 456 C6 Corvettes.

To personalize it further for car shows, David has added his touch, including a custom steering wheel and a new shifter boot in matching leather, among other additions.

He’s also had his driver’s seat professionally recovered with OEM material to ensure it looks as good as the day it rolled off the assembly line.

More Than a Car: A Passion Shared

David is a dedicated member of the Amazing Corvette Club in Lawrenceville, Georgia, which he appreciates for its lack of rigid structure and dues.

He is also a well-known figure at Caffeine & Octane, North America’s largest monthly car show, where he arrives before dawn to set up a dedicated parking area for Corvettes.

The Amazing Corvette Club

David is an active member of the Amazing Corvette Club, a group he admires for its laid-back approach. “What I like about them is they don’t have all the rules and regulations that some clubs have,” he explains.

With no dues and a reliance on the internet for communication, the club focuses on what really matters: a shared passion for Corvettes. “It’s a really good car club,” he says, “with a lot of great people.”

A Caffeine & Octane Legend

If you’re a regular at Caffeine & Octane, you’ve likely seen David Apgar, “The Chief” in action. Every month, well before the sun comes up, you’ll find him at the Town Center at Cobb, 400 Ernest W Barrett Pkwy NW, Kennesaw, GA , setting out orange cones to reserve a prime parking area for fellow Corvette enthusiasts.

He’s a legend at the event as we chronicled in our coverage. “I’ve been doing it for years now,” he says, with a hint of pride. His dedication to the Corvette community is a testament to the joy he finds in sharing his passion.

The Chief’s Z06: A Show-Winning Tribute to Corvette Passion

For David, this journey with his Z06 is not simply about owning a car – it’s about weaving new friendships into the fabric of his life and strengthening the bonds with old companions.

Each show, each conversation is a reminder that the true legacy of passion is measured not in miles or trophies, but in the warmth of human connection.

Through his Corvette, David has rediscovered the simple magic of camarederie, finding in the community the kind of joy that endures long have the engines have cooled.