This is the exhaust pipe that is used to
connect the 4 inch riser to the Y-Pipe
on the MerCruiser V6 sterndrive.
It is included in the kit to convert the
1-piece V6 manifold to the easily
available 2-piece manifold and riser.
It is also used to convert the early V6
engines (that used the restrictive 3
inch risers) to the better performing 4
inch risers.
It is 4 inches in diameter at the top to
match a 4 inch riser. It is oval shaped
at the bottom to match the oval inlet of
the 1983 and newer Y-pipes.
Aluminum Exhaust Pipe for 4 Inch
Riser and V6 Engine
Part Number # 50750 $99.95
connect the 4 inch riser to the Y-Pipe
on the MerCruiser V6 sterndrive.
It is included in the kit to convert the
1-piece V6 manifold to the easily
available 2-piece manifold and riser.
It is also used to convert the early V6
engines (that used the restrictive 3
inch risers) to the better performing 4
inch risers.
It is 4 inches in diameter at the top to
match a 4 inch riser. It is oval shaped
at the bottom to match the oval inlet of
the 1983 and newer Y-pipes.
Aluminum Exhaust Pipe for 4 Inch
Riser and V6 Engine
Part Number # 50750 $99.95
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This is the exhaust pipe that is used to
connect the 4 inch riser to the Y-Pipe
on the MerCruiser V8 sterndrive.
It is also used to convert the early V8
engines (that used the restrictive 3
inch risers) to the better performing 4
inch risers.
It is 4 inches in diameter at the top to
match a 4 inch riser. It is oval shaped
at the bottom to match the oval inlet of
the 1983 and newer Y-pipes.
Aluminum Exhaust Pipe for 4 Inch
Riser and V8 Engine
# 50760 $135.95
connect the 4 inch riser to the Y-Pipe
on the MerCruiser V8 sterndrive.
It is also used to convert the early V8
engines (that used the restrictive 3
inch risers) to the better performing 4
inch risers.
It is 4 inches in diameter at the top to
match a 4 inch riser. It is oval shaped
at the bottom to match the oval inlet of
the 1983 and newer Y-pipes.
Aluminum Exhaust Pipe for 4 Inch
Riser and V8 Engine
# 50760 $135.95
| Conversion Kit to increase horsepower on Mercruiser V6 and V8 engines with the older 3" riser/elbow |
The three inch riser (left) used on some V6 and V8 Mercruiser engines between 1983
and 1996 is very restrictive to exhaust flow. Replacing the three inch riser with the
four inch riser (right) will increase fuel economy and horsepower. A kit that includes 2
new four inch risers, 2 new four inch exhaust pipes, 2 new four inch rubber bellows
The kits are available in aluminum and cast iron.
and 1996 is very restrictive to exhaust flow. Replacing the three inch riser with the
four inch riser (right) will increase fuel economy and horsepower. A kit that includes 2
new four inch risers, 2 new four inch exhaust pipes, 2 new four inch rubber bellows
The kits are available in aluminum and cast iron.
| Universal four inch aluminum exhaust pipe for custom exhaust systems |