Centek Marine Exhaust Systems at Fisheries Supply
This brand page is for boat owners and professional installers choose and install marine wet exhaust systems from Centek Marine, available through Fisheries Supply.
Incorrect wet exhaust design can lead to overheating, engine damage, excessive back pressure, and premature muffler failure. Whether you're refitting an older vessel or installing a new engine, proper muffler sizing and placement are critical.
At a Glance
- Choose muffler and tubing sizes that meet your engine’s back-pressure limits.
- Install lift mufflers low and allow cooling distance after water injection.
- Use FRP/fiberglass tubing for durable, corrosion-resistant runs.
- Centek fiberglass exhaust products are backed by a five-year warranty.
Centek Marine: Specialists in Wet Exhaust Solutions
Centek Marine designs and manufactures premium exhaust components for powerboats, sailboats, and commercial boats, including:
- Marine mufflers and lift mufflers
- Exhaust tubing and fittings
- Fire-retardant exhaust hose
- System separators and related parts
Their lift mufflers are purpose-built for installations where exhaust gases must be raised above the waterline and then drained safely.
Shop our selection of Centek boat mufflers.
A Wide Range of Exhaust Components
Along with their well-known wet exhaust mufflers, Centek Industries, Inc. produces rugged FRP/fiberglass tubing used in marine exhaust runs.
- Marine wet exhaust mufflers for quieter, cooler exhaust discharge
- Vernatube fiberglass wet exhaust tubing for durable, corrosion-resistant system routing
These components are commonly used in refits and new builds where reliability, heat management, and noise reduction matter.
Sizing and Selection Basics
Tubing Size: Pick tubing, hose, and fittings large enough to carry cooling water and exhaust gases without creating excessive exhaust back pressure. Back pressure that exceeds the engine manufacturer’s limit can reduce performance and shorten engine life.Muffler Size: In general, larger wet mufflers are quieter than smaller ones. Choose the largest muffler that fits your available space to maximize noise reduction, while still matching your system diameter.
Installation Guidance for Vernalift-Style Lift Mufflers
For a Vernalift lift muffler or similar Centek wet muffler:
- Place the muffler at the lowest practical point in the exhaust run.
- Maintain a minimum of two feet (61 cm) between the water-injection point and the muffler so exhaust gases cool before entering the unit.
- Follow Centek’s flow-direction labels; these mufflers are one-way designs.
These steps help prevent overheating, reduce noise, and support safe drainage.
Why Use a Wet Exhaust System?
A wet exhaust system injects cooling water into the exhaust stream to lower temperature and dampen sound. The water-cooled run also helps protect the engine from water re-entry when the system is properly designed.
Warranty Coverage
Standard Centek fiberglass exhaust products—including Vernalift and Vernatube—carry a five-year warranty from the date of original sale, covering repair or replacement up to the original purchase price.
How to Reduce Exhaust Back Pressure
- Match pipe diameter and muffler inlet/outlet to engine specs.
- Keep runs as short and straight as practical; minimize sharp bends.
- Use properly sized lift mufflers and separators for your horsepower and routing.
- Confirm final system pressure stays within engine limits.
Good sizing and layout are the most reliable ways to keep back pressure low.
Frequently Asked Questions
How do I make sure I have the proper installation of a Centek Vernalift muffler?
Proper installation places the muffler at the lowest point practical in the exhaust system and keeps at least two feet between the water-injection point and the muffler so gases cool before entering. Follow Centek’s printed flow-direction and installation guidelines.
What is the purpose of using a wet exhaust system like those offered by Centek?
Wet exhaust systems inject cooling water into the exhaust line to reduce exhaust temperature and noise, while helping prevent water from migrating back into the engine when correctly engineered.
Do Centek products come with a warranty?
Yes. Centek fiberglass exhaust products are warranted for five years from original sale, covering repair or replacement up to the original purchase price.
How can I reduce exhaust back pressure?
Reduce back pressure by selecting correct pipe and muffler sizes, designing a smooth flow path with minimal restrictions, and verifying the system stays within engine manufacturer limits.