MUFFLERS - SILENCERS by Ultra Marine

Boat Mufflers

Do you need a silencer/muffler for your boat? At My Inboard Marine, we have several boat muffler options available. Everything from muffler kits to replacement mufflers. We carry aftermarket mufflers along with original factory equipment.

My Inboard Marine carries brand names including Mastercraft, Supra Moomba, and Tige’. We are confident we carry the parts you are looking for with huge discounts that overpower the competition. We make it our priority to specifically carry top-quality equipment while delivering first-rate customer service.

Have questions about our products? We have answers! Reach out to one of our staff members by emailing us at sales@myinboardmarine.com or by calling us at 803-766-8586. Our professional marine service technicians will respond to you quickly! Grab your boat mufflers from the industry-leading online marine store today. Pro Tip: Get your part number either off the old muffler or from your engine/boat manufacturer/dealer if you are not sure!

For Warranty Information, click HERE for the PDF

PLEASE NOTE: Ultra Marine Mufflers are MADE TO ORDER.

Your order will normally ship within 4 BUSINESS days after you order.

Scroll down for all Mufflers

2002-2006 MUFFLER MASTERCRAFT - 6.0 VRS - Cadillac OEM 253002A
$1,050.13 $1,316.78
MUFFLER MASTERCRAFT 2002-2006 6.0 VRS - Cadillac OEM 253002A Inlets/outlets are 3-1/2” OD The main cylinder is 30” long not including the end caps –...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet Port 6.0/6.2 Liter OEM 252082
$620.83 $907.97
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 6.0/6.2 Liter OEM 252082 MUFFLER - PORT 6.0/6.2 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2009-2012 MUFFLER MASTERCRAFT - INLINE HORIZONTAL 3-1/2" INLET - OUTLET 214/220/265 -252004
$460.25 $764.21
Years 2009 - 2012 Mastercraft Muffler Inline Horizontal 214/220/265  Part# 252004 3-1/2" Inlet & Outlet OAL Approx. 35.5" - 36"  Manufactured by Ultra Marine. Easy to install! Ultra...
2014 Muffler Kit Mastercraft - 5.7 Standard 214V - X14V Port And Starboard Mufflers 250047A
$1,100.40 $1,334.52
Mastercraft Muffler Kit - 2014 5.7L Standard 214V & X14V Part# 250047A For Standard 5.7L 214 - X14V Kit Includes: 1 - Standard 5.7L Port Muffler...
2014 Muffler Mastercraft - 5.7 Standard X2 Starboard Side 250044BS
$505.65 $605.69
Mastercraft Muffler 2014 5.7L Standard Starboard Side Muffler X2 Part# 250044BS Click HERE for Full Kit Part# 250044B includes both mufflers. Manufactured by Ultra Marine. Easy...
2014 Muffler Mastercraft - 5.7 Standard X2 Port Side 250044BP
$505.65 $605.69
Mastercraft Muffler 2014 Prostar 5.7L Standard X2 Port Side Muffler X2 Part# 250044BP Full Kit Part# 250044B includes both mufflers. Manufactured by Ultra Marine. Easy to install! Ultra...
2014 Muffler Kit Mastercraft - 5.7 Standard X2 Port And Starboard Mufflers 250044B
$997.25 $1,334.52
Mastercraft Muffler Kit - 2014 5.7L Standard X2 Part# 250044B For Standard 5.7L X2 Kit Includes: 1 - Standard 5.7L Port Muffler 1 - Standard 5.7L...
Muffler Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet 43 Inches Long OEM UM-288-3535
$353.00 $481.68
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3535 Angled 60 Degree 3-1/2" Inlet With 3-1/2" Straight Outlet 43" Tip to Tip 3-1/2" Inlet - 3-1/2" Outlet Used...
Fiberglass Exhaust Reducer 3 Inch to 4 Inch Centek Industries CENTEK-1200170
$77.87 $100.95
3 inch to 4 inch Fiberglass Exhaust Reducer Centek Industries 1200170 PERFECT for connecting your 3" Exhaust Hose to your 4" Exhaust Tips! SOLD EACH...
2004-2006 Muffler Kit Mastercraft - 3.5" MCX 280 Twin Port OEM 253016
$1,124.32 $1,699.83
MUFFLER MASTERCRAFT 2004-2006 PORT SIDE 3.5" MCX 280 Twin THE INLETS ( 2 ) ARE 3.5 INCH AND THE OUTLET ( 1 ) IS 3.5...
2014 Muffler Mastercraft - 5.7 Standard 214V - X14V Starboard Side UM-250047AS
$503.98 $605.69
Mastercraft Muffler 2014 Prostar 5.7L Standard 214V &  X14V Starboard Side Muffler 214V - X14V Part# 250047AS Full Kit Part# 250047A includes both mufflers. Manufactured by Ultra...
Muffler Mastercraft PORT Indmar Engines LSA Only Super Charged 6.2L OEM 252076P
$599.00 $849.33
MUFFLER MASTERCRAFT LSA INDMAR SUPERCHARGED ENGINES ONLY PORT SIDE - 252076 Click HERE if you need the Starboard Side. Manufactured by Ultra Marine. Easy to...
Muffler Mastercraft Starboard Indmar Engines LSA Only Super Charged 6.2L OEM 252077STBD
$599.00 $823.69
MUFFLER MASTERCRAFT LSA INDMAR SUPERCHARGED ENGINES ONLY STARBOARD SIDE Click HERE if you need the Port Side. Manufactured by Ultra Marine. Easy to install! Ultra...
Rolled Edge Exhaust Tips With Flapper - 4 Inch Corsa® Performance 11030 Rolled Edge Exhaust Tips With Flapper - 4 Inch Corsa® Performance 11030
$349.00 $399.99
Pair of polished stainless steel bull nose exhaust tips fit inboard boats with 4 in. exhaust. 90 degree flange exhaust tips For use with 4...
45° Straight Cut Pipe Exhaust Outlet With Angled Flange 3-1/2" WITH BAFFLE! 45° Straight Cut Pipe Exhaust Outlet With Angled Flange 3-1/2" WITH BAFFLE!
$275.00 $347.52
45° Straight Cut Pipe Exhaust Outlet With Angled Flange 3-1/2" WITH BAFFLE! SOLD EACH! 3-1/2" 304 Stainless Steel Straight Thru Hull Incorporates an internal muffler...
2005-2006 Muffler Mastercraft - 8.1 Crusader 245 SS OEM 253023A
$1,045.88 $1,668.78
MUFFLER MASTERCRAFT 2005-2006 8.1 Crusader 245 SS OEM 253023A Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine fiberglass and highly fire-retardant resins make...
2005-2006 MUFFLER MASTERCRAFT - 6.0 Crusader SW OEM 253022A
$1,063.56 $1,614.21
kMUFFLER MASTERCRAFT 2005-2006 6.0 Crusader SW OEM 253022A Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine fiberglass and highly fire-retardant resins make this...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet - Starboard 7.4 Liter OEM 252085
$594.83 $907.97
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 7.4 Liter OEM 252085 MUFFLER-STBD 7.4 Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine fiberglass...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet - Port 7.4 Liter OEM 252084
$594.83 $907.97
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 7.4 Liter OEM 252084 MUFFLER - PORT 7.4 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet - Starboard MCX V-Drive OEM 252075
$547.93 $573.92
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard MCX V-Drive OEM 252075 MUFFLER-STBD 2011 - 2012 USE W/ MCX V-DRIVE Manufactured by Ultra Marine. Easy...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet -Port MCX V-Drive OEM 252074
$548.93 $673.92
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port MCX V-Drive OEM 252074 MUFFLER - PORT 2011 - 2012 USE W/ MCX V-DRIVE Manufactured by Ultra...
2009-2012 MUFFLER MASTERCRAFT LATE 2009 - 2012 - 4" Inlet/3.5" Outlet - Vertical Starboard 245/255/XS Use W/8.1 OEM 252065
$607.39 $856.70
MUFFLER MASTERCRAFT LATE 2009 - 2012 4" Inlet - 3.5" Outlet Vertical Starboard 245/255/XS Use W/8.1 OEM 252065 MUFFLER-4>3.5"VERT. STARBOARD LATE'2009 - 2012 - 245/255/XS...
2009-2012 MUFFLER MASTERCRAFT LATE 2009 - 2012 - 4" Inlet /3.5" Outlet - Vertical Port 245/255/XS use W/8.1 OEM 252064
$607.40 $856.70
MUFFLER MASTERCRAFT LATE 2009 - 2012 4" Inlet /3.5" Outlet Vertical Port 245/255/XS Use W/8.1 OEM 252064 MUFFLER 43.5" VERT. PORT LATE 2009 -2012  -...
2014 Muffler Mastercraft - 5.7 Standard 214V - X14V Starboard Side 250047AS
$455.95 $580.99
Mastercraft Muffler 2014 Prostar 5.7L Standard Starboard Side Muffler 214V & X14V Part# 250047AS Full Kit Part# 250047A includes both mufflers. Manufactured by Ultra Marine. Easy to...
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