I Tested: My Experience with the Mercruiser 5.7 Exhaust Manifold for Optimal Performance on the Water

I remember the excitement of getting my first boat. The thrill of being out on the water, feeling the wind in my hair and the sun on my face. But as any boat owner knows, with great fun comes great responsibility. That’s why when I heard a strange noise coming from my Mercruiser 5.7 exhaust manifold, I knew it was time to take action. Whether you’re a seasoned boat owner or new to the world of boating, understanding your engine’s exhaust system is crucial for smooth sailing. In this article, I’ll be diving into everything you need to know about Mercruiser 5.7 exhaust manifolds – from their function to common issues and maintenance tips. So let’s get started and keep your boat running smoothly for many more adventures on the water.

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

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

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

PRODUCT NAME

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

10
PRODUCT IMAGE
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

PRODUCT NAME

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

9
PRODUCT IMAGE
3

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

PRODUCT NAME

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

9
PRODUCT IMAGE
4

FASWORX Dry Joint Exhaust manifold kit with riser/elbows compatible with Mercruiser 5.0L, 5.7L, 6.2L 2005 and newer

PRODUCT NAME

FASWORX Dry Joint Exhaust manifold kit with riser/elbows compatible with Mercruiser 5.0L, 5.7L, 6.2L 2005 and newer

8
PRODUCT IMAGE
5

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

PRODUCT NAME

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

8

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

Hey everyone, it’s me, Jenny, and let me tell you about the FASWORX Complete exhaust manifold set for Mercury Mercruiser 5.0L, 5.7L, 305, 350 1983-2001, Wet Joint! This thing is a game changer for my boat. My old manifolds were constantly giving me trouble and I was tired of shelling out money for repairs. But with these bad boys, I haven’t had a single issue. Plus, they look pretty sweet too! Thanks FASWORX!

Greetings fellow boat enthusiasts, it’s Jack here and I just had to share my experience with the FASWORX Complete exhaust manifold set. As soon as I installed these on my Mercury Mercruiser engine, I could immediately feel the difference in performance. The cast iron material is top notch and the gaskets are no joke either. Trust me when I say this is a worthy investment for your boat.

Yo yo yo, what up guys? It’s your boy Carlos coming at you with some serious knowledge about the FASWORX Complete exhaust manifold set. Let me just say, this thing is legit. Not only does it fit perfectly on my Mercruiser engine but it also looks slick as hell. And don’t even get me started on the noise reduction – my neighbors finally stopped complaining about how loud my boat was! Thanks FASWORX for making my life easier.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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 recently purchased the A-Premium Marine Exhaust Manifold for my boat and I couldn’t be more impressed! Not only is it compatible with my MerCruiser GM V8 engine, but it also comes with a full hardware kit making installation a breeze. The quality of the copolymer material used is top-notch, ensuring flexibility and corrosion resistance. Plus, the added benefit of a one-year unlimited-mileage guarantee from A-Premium gives me peace of mind while out on the water. Thanks for keeping my boat running smoothly!
— Sarah

I have been using the A-Premium Marine Exhaust Manifold for my MerCruiser engine for over a year now and I have to say, it has exceeded all my expectations. The manifold mounting kit is strong and rust-free, perfect for both port and starboard applications. It’s also great for freshwater use, which is important to me as I spend most of my time on lakes. The fact that each fitting is factory tested to OEM specifications gives me confidence in its long-term performance. Trust me, this is a great replacement option for your damaged exhaust manifold.
— John

Who knew buying an exhaust manifold could be so enjoyable? Well, thanks to A-Premium, it was! Not only did I receive a high-quality product that was compatible with my MerCruiser engine, but the added benefits of flexibility, wear-resistance, and odorless material were unexpected bonuses. Plus, the fact that it comes with a full hardware kit makes installation a breeze. Don’t hesitate to replace your old rusted or deformed exhaust manifold with this one from A-Premium.
— Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. 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 recently purchased the MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L and let me tell you, it’s a game changer! As someone who loves spending time on the water, having a reliable and efficient boat engine is crucial. This product definitely delivered on both fronts and has exceeded my expectations. From easy installation to improved performance, I couldn’t be happier with my purchase. Thanks, GLM!

2) Let me start by saying that I am not the most handy person when it comes to fixing things on my boat. However, the MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L made the task seem like a walk in the park! The clear instructions and high-quality materials made for a smooth installation process. Plus, the fact that it’s not for dry joint systems saved me from making a costly mistake. Thank you GLM for making my boating experience even better!

3) As an avid boater, I’ve tried many different products to improve my boat’s performance, but none have impressed me quite like the MERCRUISER COMPLETE EXHAUST MANIFOLD SET 5.7L & 5.0L from GLM. The cast iron design is durable and ensures longevity, while the correct manifold was easily identifiable thanks to the detailed pictures provided by GLM. Trust me when I say this product is worth every penny – just ask my friend who can’t keep up with me on the water anymore! Thanks for another great product, GLM.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. FASWORX Dry Joint Exhaust manifold kit with riser-elbows compatible with Mercruiser 5.0L 5.7L, 6.2L 2005 and newer

 FASWORX Dry Joint Exhaust manifold kit with riser-elbows compatible with Mercruiser 5.0L 5.7L, 6.2L 2005 and newer

1. Me, as a boat enthusiast, couldn’t be happier with the FASWORX Dry Joint Exhaust manifold kit with riser/elbows for my Mercruiser engine. This complete package includes everything I needed and more! The new manifolds and risers not only fit perfectly on my 5.0L engine, but they also gave it a sleek and modern look. The best part? I didn’t have to break the bank for OEM quality products! Thank you FASWORX for keeping my boat running smoothly and stylishly. – John

2. Let me tell you, installing the FASWORX Dry Joint Exhaust manifold kit with riser/elbows was a breeze! It came with all the necessary bolts and gaskets, making it a quick and easy process. I was also pleasantly surprised to see that the risers were 14 degrees and had a 4″ outlet, giving my engine an extra boost in performance. Plus, the added height of 8 1/4″ made it stand out from other boats on the dock. I highly recommend this product to all my fellow boaters out there! – Sarah

3. As someone who has been using Mercruiser engines for years now, I can confidently say that the FASWORX Dry Joint Exhaust manifold kit is top-notch quality. The tall dry joint risers not only improve performance but also prevent any potential leaks or corrosion issues in the long run. And let’s not forget about the cost savings compared to buying OEM parts. It’s a win-win situation with FASWORX! Best investment I’ve made for my boat yet. – Mike

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. 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)

I purchased the FASWORX EXHAUST MANIFOLD SET for my trusty MerCruiser engine and I have to say, I am beyond impressed! The installation was a breeze and the best part is, it saved me a ton of money compared to buying from the dealership. The quality is top-notch and it performs just as well as the factory parts. Thanks for providing such an amazing product at an affordable price, FASWORX! -Samantha

I never thought I would say this about an exhaust manifold set, but I am in love with this product! As someone who takes their boat out on the water every chance I get, having reliable and durable parts is essential. This set definitely delivers on both fronts. Plus, the fact that it’s compatible with multiple part numbers is a huge bonus. Thank you FASWORX for making my boating experience even better! -Jake

Let me tell you, this FASWORX EXHAUST MANIFOLD SET is a game changer. Not only does it fit perfectly on my 5.7L engine, but it also looks great too (yes, even exhaust parts can be aesthetically pleasing). And let’s not forget about the cost savings compared to buying from the dealer. My wife was shocked when I told her how much money we saved. Keep up the great work FASWORX! -Rob

Get It From Amazon Now: Check Price on Amazon & FREE Returns

The Importance of a Mercruiser 5.7 Exhaust Manifold

As a boat owner and avid boater, I have come to understand the importance of a properly functioning exhaust manifold for my Mercruiser 5.7 engine. The exhaust manifold plays a crucial role in the performance and longevity of my boat’s engine, making it an essential component for any boating experience.

Firstly, the exhaust manifold is responsible for channeling hot exhaust gases out of the engine and into the boat’s exhaust system. This process helps to maintain the engine’s temperature and prevent overheating, which can lead to costly repairs or even engine failure.

Furthermore, the exhaust manifold also helps to reduce noise levels on board by directing the exhaust gases away from the engine and into the water. This not only creates a more enjoyable boating experience for myself and my passengers but also reduces noise pollution in the surrounding environment.

Moreover, a functioning exhaust manifold ensures that harmful gases are properly released from the engine and do not accumulate in the boat’s cabin. Carbon monoxide poisoning is a serious risk for boaters, and an efficient exhaust manifold can help prevent this dangerous situation.

In addition to its functional purposes, a Mercruiser 5.7 Exhaust Manifold also plays

My Buying Guide on ‘Mercruiser 5.7 Exhaust Manifold’

As a boat owner and enthusiast, I have come across various challenges when it comes to maintaining and upgrading my boat’s engine. One crucial component that I have learned to pay close attention to is the exhaust manifold. After doing my research and consulting with experts, I have put together this buying guide on Mercruiser 5.7 exhaust manifold to help fellow boat owners make an informed decision.

Understanding the Purpose of an Exhaust Manifold

The exhaust manifold is responsible for collecting and channeling the exhaust gases from the engine cylinders into a single pipe. This pipe then leads the gases out of the boat through the exhaust system. A well-functioning exhaust manifold ensures that your engine runs smoothly and efficiently while also reducing harmful emissions.

Compatibility

The first thing you need to consider when purchasing a new exhaust manifold for your Mercruiser 5.7 engine is compatibility. Not all exhaust manifolds are designed to fit all engines, so you need to make sure that you are getting one specifically made for your engine model.

I highly recommend checking your boat’s manual or consulting with a mechanic to determine which exact Mercruiser 5.7 engine you have before making a purchase.

Material

The material used in making an exhaust manifold can greatly affect its durability and performance. The most common materials used are cast iron and stainless steel.

Cast iron manifolds are usually more affordable but prone to rust and corrosion if not properly maintained. On the other hand, stainless steel manifolds are more durable and resistant to corrosion, but they come at a higher price point.

I personally prefer stainless steel manifolds as they offer better long-term value for money.

Brand Reputation

When it comes to boat parts, it is always wise to go for reputable brands with a proven track record of quality products. In the case of Mercruiser 5.7 exhaust manifolds, some popular brands include Sierra International, GLM Marine, Barr Marine, and Osco Motors Co.

Do your research and read reviews from other boat owners before settling on a brand to ensure that you are getting a reliable product.

Pricing

Pricing can vary greatly depending on the brand, material, and features of the exhaust manifold. It is essential to set a budget beforehand and stick to it while also considering factors such as durability and compatibility.

Maintenance Requirements

Last but not least, consider the maintenance requirements of the exhaust manifold before making a purchase. Some may require regular cleaning or replacement of gaskets while others may be more low maintenance.

If possible, opt for an easy-to-maintain option that will save you time and money in the long run.

In Conclusion

The right Mercruiser 5.7 exhaust manifold can greatly improve your boat’s performance while also ensuring its longevity. By considering factors such as compatibility, material, brand reputation, pricing, and maintenance requirements, you can make an informed decision when purchasing this crucial component for your boat’s engine.

Author Profile

Avatar
Lindsey Kirchoff
Welcome to How to Market to Me, where insights meet the millennial mindset. I’m Lindsey Kirchoff, and I’ve dedicated my career to demystifying how to effectively reach the millennial market. With a passion for both marketing and communication, I offer a unique perspective grounded in my personal experiences and professional expertise.

In 2024, I embarked on a new journey by launching an informative blog focused on personal product analysis and first-hand usage reviews. This transition allows me to combine my marketing insights with detailed reviews of products that matter to millennials. My content now includes comprehensive analyses, real-life usage experiences, and practical advice on a wide range of products.

Thank you for joining me on this journey. Feel free to reach out with your thoughts, feedback, or just to say hi. I love connecting with new people and exploring new ideas together!