4" Slip-In Silencer

These silencers are one of the best values on the market today Their unique louvered design out flows all other imitations with holes These silencers are constructed from 100% stainless steel and their compact 5" length makes them easy to install in most exhaust tips and water injected headers Decibel drops of 8 to 10 are commonly seen. Best suited for under 425 horsepower applications.  Sold in pairs.

4" Half Slots Slip-In Silencer

These silencers are similar to the standard 410-284401 silencers. These silencers are constructed from 100% stainless steel and their compact 5" length makes them easy to install in most exhaust tips and water injected headers Decibel drops of 8 to 10 or more are commonly seen. These have half the slots that the 410-284401 have and may perform better in some applications. Best suited for under 425 horsepower applications. Not for use in high compression applications.  Sold in pairs.

4" Hi-Performance Silencer For Water Injected Headers

These high performance silencers feature large stainless packed louvered design cores for maximum performance through a muffler system They are ideal for blown or high compression engines They are approximately 10" long and slip in a 4" header collector Best suited for higher horsepower applications.  Sold in pairs.

HCX Competition Series Offshore Mufflers
4" O.D. x 8"Long  (Pair)

HCX Offshore Competition Race Mufflers Design and Function Faster & Quieter

With decades devoted to marine exhaust technology Hardin Marine knows a HIGH horsepower muffler does not work by restricting flow. There is a balance between noise reduction and horse power retention. The HCX series mufflers tuned free-flow unrestricted design along their with strategically placed louvers streamlines your boats exhaust flow reducing back pressure while also adding a level of sound deadening and providing up to 8 decibels (8" version) of noise reduction and an incomparable deep, rich sound.

In order to offer maximum exhaust flow in its most basic sense and for the muffler to reduce noise, it must separate that noise (sound waves), by separating the peaks and valleys produced by the exhaust note. These sound waves are then absorbed throughout the length of the muffler, the harsh (Loud) noise notes can be some what neutralized through this technology this is exactly how the HCX series muffler achieves this.

These mufflers provide the long awaited option to the numerous 750+ horse powered boats that longed for a muffler option that wouldn’t rob them of their available horse power and that could also be easily installed and removed for various boating environments. The lightweight design is perfect for dry tailpipe applications but they can also be used in wet pipe applications. Common applications are high horsepower, supercharged or normally aspirated engines. Each muffler is precision TIG welded utilizing all stainless steel construction. The mufflers are available in a standard 8" length or a long 16" version in both 4" O.D and a 4-1/2" O.D. They are easily removable with just 1 hex screw (no special tool needed, just a standard size allen wrench)

• All Stainless Steel Construction

• Strategic louvered design provides noise reduction

• Available lengths 8" and 16"

• Perfect for Dry or Wet exhaust systems

• Both 4" and 4-1/2" O.D available

• Maximum flow

• Simple single bolt installation

HCX Competition Series Offshore Mufflers
4-1/2" O.D. x 8"Long  (Pair)

HCX Offshore Competition Race Mufflers Design and Function Faster & Quieter

With decades devoted to marine exhaust technology Hardin Marine knows a HIGH horsepower muffler does not work by restricting flow. There is a balance between noise reduction and horse power retention. The HCX series mufflers tuned free-flow unrestricted design along their with strategically placed louvers reamlines your boats exhaust flow reducing back pressure while also adding a level of sound deadening and providing up to 8 decibels (8" version) of noise reduction and an incomparable deep, rich sound.

In order to offer maximum exhaust flow in its most basic sense and for the muffler to reduce noise, it must separate that noise (sound waves), by separating the peaks and valleys produced by the exhaust note. These sound waves are then absorbed throughout the length of the muffler, the harsh (Loud) noise notes can be some what neutralized through this technology this is exactly how the HCX series muffler achieves this.

These mufflers provide the long awaited option to the numerous 750+ horse powered boats that longed for a muffler option that wouldn’t rob them of their available horse power and that could also be easily installed and removed for various boating environments. The lightweight design is perfect for dry tailpipe applications but they can also be used in wet pipe applications. Common applications are high horsepower, supercharged or normally aspirated engines. Each muffler is precision TIG welded utilizing all stainless steel construction. The mufflers are available in a standard 8" length or a long 16" version in both 4" O.D and a 4-1/2" O.D. They are easily removable with just 1 hex screw (no special tool needed, just a standard size allen wrench)

• All Stainless Steel Construction

• Strategic louvered design provides noise reduction

• Available lengths 8" and 16"

• Perfect for Dry or Wet exhaust systems

• Both 4" and 4-1/2" O.D available

• Maximum flow

• Simple single bolt installation

HCX Competition Series Offshore Mufflers
4" O.D. x 16"Long  (Pair)

HCX Offshore Competition Race Mufflers Design and Function Faster & Quieter

With decades devoted to marine exhaust technology Hardin Marine knows a HIGH horsepower muffler does not work by restricting flow. There is a balance between noise reduction and horse power retention. The HCX series mufflers tuned free-flow unrestricted design along their with strategically placed louvers streamlines your boats exhaust flow reducing back pressure while also adding a level of sound deadening and providing up to 8 decibels (8" version) of noise reduction and an incomparable deep, rich sound.

In order to offer maximum exhaust flow in its most basic sense and for the muffler to reduce noise, it must separate that noise (sound waves), by separating the peaks and valleys produced by the exhaust note. These sound waves are then absorbed throughout the length of the muffler, the harsh (Loud) noise notes can be some what neutralized through this technology this is exactly how the HCX series muffler achieves this.

These mufflers provide the long awaited option to the numerous 750+ horse powered boats that longed for a muffler option that wouldn’t rob them of their available horse power and that could also be easily installed and removed for various boating environments. The lightweight design is perfect for dry tailpipe applications but they can also be used in wet pipe applications. Common applications are high horsepower, supercharged or normally aspirated engines. Each muffler is precision TIG welded utilizing all stainless steel construction. The mufflers are available in a standard 8" length or a long 16" version in both 4" O.D and a 4-1/2" O.D. They are easily removable with just 1 hex screw (no special tool needed, just a standard size allen wrench)

• All Stainless Steel Construction

• Strategic louvered design provides noise reduction

• Available lengths 8" and 16"

• Perfect for Dry or Wet exhaust systems

• Both 4" and 4-1/2" O.D available

• Maximum flow

• Simple single bolt installation

HCX Competition Series Offshore Mufflers
4-1/2" O.D. x 16"Long  (Pair)

HCX Offshore Competition Race Mufflers Design and Function Faster & Quieter

With decades devoted to marine exhaust technology Hardin Marine knows a HIGH horsepower muffler does not work by restricting flow. There is a balance between noise reduction and horse power retention. The HCX series mufflers tuned free-flow unrestricted design along their with strategically placed louvers streamlines your boats exhaust flow reducing back pressure while also adding a level of sound deadening and providing up to 8 decibels (8" version) of noise reduction and an incomparable deep, rich sound.

In order to offer maximum exhaust flow in its most basic sense and for the muffler to reduce noise, it must separate that noise (sound waves), by separating the peaks and valleys produced by the exhaust note. These sound waves are then absorbed throughout the length of the muffler, the harsh (Loud) noise notes can be some what neutralized through this technology this is exactly how the HCX series muffler achieves this.

These mufflers provide the long awaited option to the numerous 750+ horse powered boats that longed for a muffler option that wouldn’t rob them of their available horse power and that could also be easily installed and removed for various boating environments. The lightweight design is perfect for dry tailpipe applications but they can also be used in wet pipe applications. Common applications are high horsepower, supercharged or normally aspirated engines. Each muffler is precision TIG welded utilizing all stainless steel construction. The mufflers are available in a standard 8" length or a long 16" version in both 4" O.D and a 4-1/2" O.D. They are easily removable with just 1 hex screw (no special tool needed, just a standard size allen wrench)

• All Stainless Steel Construction

• Strategic louvered design provides noise reduction

• Available lengths 8" and 16"

• Perfect for Dry or Wet exhaust systems

• Both 4" and 4-1/2" O.D available

• Maximum flow

• Simple single bolt installation