Marine Engine Upgrades & Install Services

Performance Perfected

More Power. Better Reliability. Modern Systems. Expert Support.

Some people just want their boat running the way it should. Others want more — more power, more style, more reliability, more confidence when they push the throttle forward. That’s where Prestige Motorsports comes in.

Marine upgrades aren’t “extras” or guesswork bolt-ons. They’re smart, intentional improvements that make your time on the water better, with safer starts, stronger pulls, tighter rigging, smoother cruising, or the kind of acceleration that makes everybody take notice. Whether you’re looking for a modernized system, a performance bump, or a full boat restoration, our team builds every upgrade with the same care and precision we bring to our custom marine engines.

This is professional boat rigging rooted in honesty, engineering, and real-world marine experience — not shortcuts.

Why Boat Owners Come to Prestige

Most people come to us with a clear goal (“I want more speed,” “I want better handling,” “I want this thing to sound amazing”), and a less-clear plan for how to get there. The expert at Prestige Motorsports can make your vision a reality and advise you on the best path forward based on your goals, budget, and timeline.

Common Reasons for Marine Upgrades

  • More horsepower or torque
  • Smoother, more dependable operation
  • Better fuel efficiency under load
  • Modernizing outdated electrical or control systems
  • Replacing worn components or recovering from a past installer’s mistakes
  • Seasonal prep or boat winterizing
  • Comfort, convenience, or cosmetic enhancements
  • Full or phased boat restoration projects

Some customers want a faster boat. Some want a more reliable one. Some want both. We help them define the right path — and build toward the goals that matter most.

Popular Marine Upgrades & Install Services

From repowers to electronics upgrades, we handle a wide range of marine improvements — whether it’s a single performance upgrade or a complete transformation.

Engine Repowers & Performance Updates

The most common upgrade we perform.

We handle everything from full marine engine installs to updating proven platforms like the Mercury 525.

Examples include:

  • Increasing a 525 to 600–650 hp with camshaft and cylinder head upgrades
  • Updating injectors, throttle bodies, and ECU mapping
  • Installing new or rebuilt marine engines
  • Improving fuel efficiency under load
  • Boosting torque for tow sports, heavy hulls, or performance applications

Whether you’re chasing speed or trying to extend engine life, reliability is always the baseline.

Say goodbye to cold starts, fuel smell, and tuning headaches.

Fuel injection is one of the most impactful upgrades you can make — especially for older carbureted vessels.

We install:

  • Multi-port EFI systems
  • ECUs and wiring/control units
  • Replacement systems for locked MerCruiser ECUs
  • Full top-end EFI conversions

Better starting, cleaner running, easier tuning — and better performance at every RPM.

From cooling efficiency to personality and sound, these upgrades make your boat feel completely different on the water.

Popular options include:

  • Captain’s Call exhaust (switchable above-water sound)
  • Updated raw-water or closed-cooling systems
  • Water pumps, oil coolers, and upgraded plumbing
  • High-performance exhaust upgrades
  • Corrosion-resistant components for lake or saltwater use

Whether you want a quiet cruiser or something that sounds angry in all the right ways, we’ve got you covered.

Modern boats demand modern systems.

We install and integrate:

  • New digital gauge clusters and controls
  • GPS, fish finders, chartplotters
  • Wiring harness replacements
  • Battery, alternator & charging upgrades
  • Modernized dash layouts
  • LED lighting and accessory circuits

If it powers, controls, or displays something on your boat, we can upgrade it.

A better-performing boat should look as good as it runs.

Available upgrades include:

  • Wakeboard tower installs
  • Swim deck additions or custom-built swim platforms
  • Exterior restoration, gelcoat correction & buffing
  • Anti-fouling paint removal and reconditioning (via soda blasting partner)
  • Trailer upgrades: tires, hubs, powder coating, and maintenance

Your boat doesn’t have to be new to look (and perform) like new.

How the Install Process Works

From Consultation to Water-Tested Confidence

1.

Discovery & Consultation

Every project starts with a phone or video consultation (Zoom, WhatsApp, Teams).
You tell us your goals — performance, efficiency, comfort, reliability — and we guide you toward the right upgrade plan.

2.

Inspection & Estimate

We review your boat, your systems, and your marine engine setup.
You get a detailed, line-by-line estimate with full transparency.

3.

Parts, Planning & Boat Rigging

Your project enters our Project Planner with photos, documentation, and progress tracking.
We handle all necessary boat rigging, wiring, plumbing, and structural considerations.

4.

Precision Installation

Work is completed by specialists with deep experience in performance and marine environments.

5.

Testing & Tuning

  • Initial “on the hose” check for leaks and function
  • Lake testing
  • Remote EFI tuning available
  • Consultation on prop pitch and outdrive placement for maximum performance


We treat every boat like we’re preparing it for the water ourselves.

6.

Delivery & Ongoing Support

You receive:

  • Photos & videos of the work
  • Dyno sheets (if applicable)
  • Setup notes
  • Maintenance recommendations

We remain available for remote tuning, diagnostics, and future upgrades.

What Affects Time & Cost

No two boats are alike — and no two upgrades are either.
Factors that influence timelines and pricing include:

  • Age and condition of the vessel
  • Type of boat (e.g., modern fiberglass vs. vintage wooden hull)
  • Single vs. twin-engine setups
  • Access to components and rigging
  • Electrical system complexity

 

Whether upgrades are performance-driven or restoration-driven

A 2004 Sea Ray may be a weekend project.

A 1955 wooden Chris-Craft? That’s a specialty build requiring rare parts and custom fabrication.
We work with your goals and your budget — whether it’s a single upgrade or a multi-phase plan.

Why Boat Owners Trust Prestige

Honesty. Transparency. Reliability. Craftsmanship.

We hear the same story constantly: “Someone else worked on it — and now nothing is right.”

Many shops know boats.

Few know marine engines, performance tuning, electrical integration, and complex boat rigging at a high level.

Prestige is different because:

  • We build and test our own engines
  • We understand performance engineering inside and out
  • We document everything
  • We back our work with ongoing support
  • We communicate clearly and honestly
  • We value long-term relationships, not quick fixes

 

If we’re doing the job, it’ll be done right — and it’ll run right.

Start Your Marine Upgrade or Install Project

The right marine upgrades don’t just change how your boat performs — they change how it feels to own. When your systems work, your engine responds, and your setup is dialed in, the entire experience becomes smoother, faster, and far more enjoyable.

Whether you’re chasing horsepower, reliability, comfort, or a full-scale boat restoration, Prestige can help you choose the path that delivers the biggest impact for your goals and budget.

Schedule a Consultation

A phone or video call is the perfect first step.

If your project warrants it, we can even come on-site — because the best recommendations come from seeing the boat in its real environment.

Let’s talk about what you want from your boat and build a plan to make it happen.