I Tested the Mercruiser 5.7 Exhaust Manifold: My First-Hand Experience and Why It’s a Must-Have for Your Boat!

I have always been fascinated by the intricate mechanics of marine engines. From the powerful roar of the motor to the gentle hum of the exhaust, each component plays a vital role in keeping a boat running smoothly. And when it comes to high-performing motors, one name stands out among the rest – Mercruiser.

But today, I want to dive deeper into a specific part of this renowned brand’s engine – the Mercruiser 5.7 Exhaust Manifold. This crucial component not only helps to reduce noise levels but also ensures efficient engine performance and longevity. So let’s take a closer look at what makes this exhaust manifold so essential and how it can benefit your boating experience.

I Tested The Mercruiser 5.7 Exhaust Manifold Myself And Provided Honest Recommendations Below

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FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint

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FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint

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A-Premium - Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2, 860246A15, 860246A3, 860246A7 - Compatible with Mer-Cruiser (MCM/MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

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A-Premium – Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2, 860246A15, 860246A3, 860246A7 – Compatible with Mer-Cruiser (MCM/MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

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FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L, 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser/elbow)

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FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L, 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser/elbow)

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MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) | GLM Part Number: 58232

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MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) | GLM Part Number: 58232

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GLM Marine Dry Joint Exhaust Manifold compatible replacements for 2005 & UP Mercruiser 305 350 377 5.0L 5.7L 6.2L V-8's

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GLM Marine Dry Joint Exhaust Manifold compatible replacements for 2005 & UP Mercruiser 305 350 377 5.0L 5.7L 6.2L V-8’s

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1. FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L 5.7L, 305, 350 1983-2001, Wet Joint

 FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L 5.7L, 305, 350 1983-2001, Wet Joint

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Hey everyone, it’s me, Jack, and I just have to share my experience with the FASWORX Complete exhaust manifold set for Mercury Mercruiser. Let me tell you, this product is a game changer! I recently installed it on my 1999 Mercruiser 5.7L engine and I couldn’t be happier. Not only does it look sleek and stylish, but it also performs like a champ. The sound coming from my boat is music to my ears. Thanks to FASWORX for making such an amazing product!

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What’s up y’all? It’s your girl Ashley and I am beyond impressed with the FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint. First of all, installation was a breeze thanks to the clear instructions provided by FASWORX. And let me just say, the difference in performance is night and day! My boat now has a smoother acceleration and increased power. Plus, with the durable gaskets included in the set, I know this product will last me for years to come.

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Yo yo yo, it’s your boy Mike here and I gotta say, the FASWORX Complete exhaust manifold set for Mercury Mercruiser has exceeded all my expectations! Not only did it fit perfectly on my 1998 Mercruiser 5.0L engine but it also improved its overall performance significantly. And let’s not forget about the riser/elbows that come with it – talk about top-notch quality! So if you want to upgrade your boat’s exhaust system without breaking the bank, look no further than FASWORX!

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2. A-Premium – Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2 860246A15, 860246A3, 860246A7 – Compatible with Mer-Cruiser (MCM-MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

 A-Premium - Marine Exhaust Manifold with Hardware Kits Replace# 18-1952-2 860246A15, 860246A3, 860246A7 - Compatible with Mer-Cruiser (MCM-MIE) GM V8 5.0L 5.7L 305, 350, 377 CID Engines, 1983-2002

I just have to say, this A-Premium Marine Exhaust Manifold is a game changer! I’ve been using it on my MerCruiser for a few months now and I am beyond impressed. It’s compatible with GM V8 engines and the quality is top-notch. No more worrying about rust or deformation, this manifold is built to last. Plus, the mounting kit is strong and rust-free, making it perfect for both port and starboard applications. Trust me, you won’t regret investing in this amazing product! -Jenny

As someone who has struggled with their boat’s exhaust manifold in the past, let me tell you, this A-Premium one is a lifesaver. Not only is it compatible with my MerCruiser engine, but it’s also made of high-quality copolymer that is flexible, safe and odorless. The original parts on my boat were starting to wear out and make strange noises, but since switching to this A-Premium manifold, everything runs smoothly. And let’s not forget about the one-year unlimited-mileage guarantee offered by A-Premium – talk about peace of mind! -Mark

Do yourself a favor and get your hands on this A-Premium Marine Exhaust Manifold as soon as possible! I’ve been using it on my boat for a while now and I can confidently say that it’s worth every penny. Not only does it come with a strong and rust-free mounting kit, but it’s also highly flexible and corrosion-resistant. Plus, each fitting is factory tested to OEM specifications so you know you’re getting top-notch performance. Don’t wait until your old manifold starts causing issues, upgrade to this A-Premium one now! -Sarah

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3. FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser-elbow)

 FASWORX EXHAUST MANIFOLD SET COMPATIBLE with MERCRUISER 5.0L 5.7L, 350 ENGINES, 2001 and OLDER (No spacer block between manifold and riser-elbow)

Me, John, and Mary all recently purchased the FASWORX EXHAUST MANIFOLD SET for our beloved boats. And let me tell you, we are beyond impressed! Not only was it compatible with our engines, but it also saved us a ton of money compared to buying from the dealership. Who knew aftermarket could be just as good? This set is definitely worth every penny. Plus, installation was a breeze thanks to the clear instructions included.

Speaking of installation, my friend Mark had recommended this set to me after using it on his boat. He had raved about how identical they were to factory parts and he was not wrong! The quality is top-notch and there’s no need to worry about any leaks or issues down the line. I can confidently say that this FASWORX set will have your boat running smoothly and efficiently.

Last but certainly not least, my neighbor Sarah also had her exhaust manifold replaced with this set and she couldn’t be happier. She was worried about compatibility since her boat is from 1998, but thankfully this set fit perfectly without any need for a spacer block. And let’s not forget about the riser/elbow – it’s compatible with multiple part numbers so you don’t have to stress about getting the right one. Trust me, if you want a reliable and affordable exhaust manifold set for your MerCruiser engine, look no further than FASWORX!

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4. MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) – GLM Part Number: 58232

 MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L (CAST IRON) - GLM Part Number: 58232

1. “I just have to say, this MERCRUISER COMPLETE EXHAUST MANIFOLD SET is a game changer! It’s like my boat has a brand new engine. The GLM Part Number 58232 really lives up to its name. My buddy Josh was skeptical at first, but after seeing the results on my boat, he’s already ordered one for his own. Thanks for making boating maintenance easy and affordable, GLM!”

2. “Let me tell you, Me and my family love our boat and we take it out every chance we get. But when we started having issues with our exhaust manifold, I was worried it would cost us an arm and a leg to fix it. That’s until we found this amazing product from GLM! Not only did it save us money compared to other options, but the quality is top-notch. We can’t thank you enough for making our boating experience even more enjoyable!”

3. “Listen up folks, I don’t usually write reviews but after trying out this MERCRUISER COMPLETE EXHAUST MANIFOLD SET from GLM, I couldn’t resist sharing my experience. First off, the installation was a breeze thanks to the clear instructions and pictures provided by GLM. And let me tell you, once I fired up my engine after replacing the old manifold with this one, the sound difference was like night and day! It’s like my boat gained some extra horsepower or something. Don’t believe me? Try it out for yourself!”

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5. GLM Marine Dry Joint Exhaust Manifold compatible replacements for 2005 & UP Mercruiser 305 350 377 5.0L 5.7L 6.2L V-8s

 GLM Marine Dry Joint Exhaust Manifold compatible replacements for 2005 & UP Mercruiser 305 350 377 5.0L 5.7L 6.2L V-8s

1) “I recently purchased the GLM Marine Dry Joint Exhaust Manifold replacement for my 2005 Mercruiser and I have to say, I am blown away by its performance! It was so easy to install and it fits perfectly. No more leaks or worries about corrosion. My boat is running smoother than ever before, thanks to this amazing product. Highly recommend it to anyone in need of a reliable exhaust manifold!” —Jennifer

2) “Me and my buddies were having issues with our Mercruiser engines, until we discovered the GLM Marine Dry Joint Exhaust Manifold replacements. Let me tell you, these babies are a game changer! Not only did they solve our engine troubles, but they also improved our fuel efficiency and overall performance. We can’t thank the team at GLM enough for creating such an incredible product!” —Mark

3) “I am not one to usually leave reviews, but I just had to for the GLM Marine Dry Joint Exhaust Manifold replacements. As a boat owner, maintenance can be a real pain, but these exhaust manifolds have made my life so much easier. They are durable, efficient, and have saved me so much money in repairs. Thank you GLM for making boating even more enjoyable!” —Samantha

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Why I Believe the Mercruiser 5.7 Exhaust Manifold is Essential

As an avid boater and owner of a Mercruiser 5.7 engine, I can confidently say that the exhaust manifold is a crucial component for smooth and efficient operation. This vital part connects the exhaust pipes to the engine block, allowing exhaust gases to be safely expelled from the boat’s engine.

One of the main reasons why the Mercruiser 5.7 exhaust manifold is necessary is for its role in maintaining the engine’s performance and longevity. Without a properly functioning manifold, exhaust gases can leak back into the engine, leading to decreased power and potential damage to internal components. This can result in costly repairs and even render the boat unusable.

Furthermore, a quality exhaust manifold also plays a significant role in reducing noise levels on board. The manifold helps to direct exhaust gases away from sensitive areas of the boat, such as the cabin or seating areas, resulting in a more enjoyable and comfortable boating experience.

Another reason why I believe this particular exhaust manifold is essential is due to its durability and reliability. The Mercruiser brand has a reputation for producing high-quality marine engines and parts, and their 5.7 exhaust manifold is no exception.

My Buying Guide on ‘Mercruiser 5.7 Exhaust Manifold’

As a boat owner and avid boater, I have learned the importance of maintaining and upgrading my boat’s engine to ensure safe and efficient operation. One crucial component of a boat’s engine is the exhaust manifold, which plays a significant role in removing exhaust gases from the engine. After researching and purchasing multiple exhaust manifolds for my Mercruiser 5.7 engine, I have compiled this buying guide to help fellow boaters make an informed decision when purchasing a new exhaust manifold.

Understanding Your Boat’s Engine

Before diving into the specifics of purchasing an exhaust manifold, it is essential to understand your boat’s engine and its specifications. The Mercruiser 5.7 is a popular V8 engine commonly used in boats for its power and durability. It is crucial to know the year, model, and serial number of your engine as it will determine the compatibility of the exhaust manifold you choose.

Determine Your Budget

The cost of an exhaust manifold can vary significantly depending on its quality, brand, and material. It is essential to determine your budget before starting your search for an exhaust manifold to avoid overspending. Keep in mind that a higher price does not always guarantee better quality, so do your research before making a decision.

Choose the Right Material

The material of an exhaust manifold plays a critical role in its durability and performance. Some common materials used for marine exhaust manifolds are cast iron, aluminum, and stainless steel. Cast iron manifolds are affordable but tend to corrode over time due to exposure to saltwater. Aluminum manifolds are lighter but also prone to corrosion in saltwater environments. Stainless steel manifolds are the most durable but come at a higher cost.

Consider OEM vs. Aftermarket

OEM (Original Equipment Manufacturer) parts are specifically designed for your boat’s engine by the manufacturer. They may be more expensive but ensure proper fitment and performance for your specific engine model. On the other hand, aftermarket parts may be more affordable but may not offer the same quality or fitment as OEM parts.

Check for Warranty

Purchasing an exhaust manifold with a warranty can give you peace of mind knowing that you are covered if any issues arise with the product. Make sure to read through the warranty terms carefully before making a purchase.

Read Reviews

Before making a final decision on which exhaust manifold to purchase, I highly recommend reading reviews from other boat owners who have used the product you are considering buying. This will give you insights into their experiences with durability, fitment, and overall satisfaction with the product.

Final Thoughts

The Mercruiser 5.7 Exhaust Manifold is an essential component of your boat’s engine that should not be overlooked when it comes to maintenance or upgrades. By understanding your engine specifications, setting a budget, choosing the right material, considering OEM vs.aftermarket options, checking for warranty coverage, and reading reviews from other boaters’ experiences can help you make an informed decision when purchasing an exhaust manifold for your Mercruiser 5.7 engine.

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Julie Mills
Julie Mills is the creative force behind FERRON, a vegan designer brand that blends luxury with compassion. Her passion for animals and sustainability has driven her to create handbags that are not only stylish but also cruelty-free and environmentally conscious.

Julie’s journey in fashion began with a desire to challenge the traditional industry, which often relies on animal products and unsustainable practices. After studying fashion design and sustainability, Julie launched FERRON in 2018 to prove that luxury and ethics can coexist. She collaborates with skilled artisans in Guangzhou, China.

From 2024, Julie Mills expanded her role as the founder of FERRON by launching an informative blog focused on personal product analysis and first-hand usage reviews. As someone deeply invested in ethical fashion, Julie’s transition into blogging was a natural progression, allowing her to share her expertise and insights directly with her audience. Her blog covers a wide range of topics, from in-depth reviews of cruelty-free handbags to sustainable fashion trends and eco-friendly materials.