Dyno testing showed gain of 15HP & 28 pound feet of torque on an O-470 engine leaned to 2600 RPM. Heavy duty fully TIG welded construction. Converts antiquated high back pressure muffler to true dual exhaust

Cessna 180, 182 and 185 “Power Monster Cross-Flow” TM



    308 Boerne Stage Airfield, Boerne Texas, 78006

    Phone: 830-755-8989

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