Inboard Marine Muffler Silencers

3-1/2" TO 3" STRAIGHT REDUCING ADAPTER 10"L

3-1/2" TO 3" STRAIGHT REDUCING ADAPTER 10"L

Y-CONNECTOR, 2 (3-1/2) IN, 4 OUT (12 L)

Y-CONNECTOR, 2 (3-1/2) IN, 4 OUT (12 L) 129

MUFFLER 3" IN/OUT ANGLED 43"L

43" tip to tip.   3" IN / 3" Out   Ski Boat Silencers will not exceed engine manufacturer’s maximum back-pressure levels. Excellent exhaust noise reduction and is not affected by electrolysis. Easy to install.   Bin Number...

ULTRA MUFFLER 3" O.D STRAIGHT INLET/OUTLET 41" LONG

Wet exhaust silencer designed for below waterline installations. The straight silencers were usually installed on older Correct Crafts and Mastercrafts using corrugated exhaust hoses.   Wet exhaust silencer designed for below waterline installations...

MUFFLER ANGLED 3" IN/OUT 15" BARREL

Ultra Marine Muffler with a 3" angled Inlet (45 degree) and 3" straight outlet. 24" front tip to rear tip, barrel measures 5" O.D. (some Mastercrafts prior to 94).   Bin Number (ISBN): 82813

MUFFLER 13 ULTRA 3" IN/OUT

13" Total length 3" inlet/outlet, 4-1/2" O.D. barrelUnique triple baffle chamber that prevents loss of performance. Great for tight installations.Also available in 3-1/2" & 4" in/out.   Bin Number (ISBN): 41204

MUFFLER 13IN. ULTRA 3-1/2IN. IN/OUT

Supra H.O. engines mid 1990's, can be cut about 1" on each end if needed (Tip to tip 13").For use with 3-1/2" ID hose, 4-1/2" OD barrel.   Bin Number (ISBN): 10710

ULTRA MARINE MUFFLER 3-1/2” IN/OUT 26" LONG

Some Mastercraft around 1994 up, Malibu around 97 up and other's (26" tip to tip). 3-1/2" Inlet and outlet, 45 degree inlet. Approximately 22" L from the outlet tip to the upward bend, 5-1/4" diameter barrel.   Bin Number (ISBN): 10610

MUFFLER, ANGLED, 3-1/2" IN. IN/OUT 43"L

Ultra Marine Muffler used on some Malibu's and Mastercrafts. 60 degree angle on inlet side, 4" O.D. barrel.   Bin Number (ISBN): 20511

MUFFLER ANGLED 3-1/2"IN, 3" OUT

Aprox 46" tip to tip, used on some Moomba's mid 1990 to reduce hose size down from 3-1/2" inlet to 3" outlet.   Bin Number (ISBN): 10510     **THIS IS A SPECIAL ORDER ITEM**

MUFFLER 90 DEGREE 3" INLET, 3-1/2" OUT 30" L

Used on some Tige with Mercruiser 5.7 engines. Bin Number (ISBN): 22718

MUFFLER ANGLED 3-1/2" IN, 3" OUTL 26"L

Ultra Marine Muffler used on some Supra/Moomba's mid-1990's and up, 3-1/2" inlet with 60-degree angle that reduces to a straight 3" outlet. Approximately 26" long tip to tip. This silencer does not have a 30" extension from the inlet of...

MUFFLER, ANGLED 3-1/2" EXTENDED IN/3" OUT

Muffler for some 04 & up Moomba direct drive boats. Angled (60 degree) 3-1/2" inlet with about a 1 foot extension from the larger silencer part that is 15" long and then reduced to a 3" outlet, total length 33" (OEM Pt # 104378).   Bin...

3 STRAIGHT TRANSOM FLANGE

3" IN/OUTLET STAINLESS STEEL THRU HULL FITTING. Extends 3" out from the mounting flange (flapper side) and 5" thru hull side, flange O.D. 5-3/8".   Bin Number (ISBN): 60309

3-1/2" TURN DOWN EXHAUST OUTLET 6" FLANGE

304 Stainless Steel Turn Down Exhaust with mirror polish thru-hull turn downs with a baffle. No flapper required, sold individually. These do quiet the exhaust noise a little more than the straight thru design with an external flapper. 6"...