Grumman AA-5/5A Traveler PFS New Tuned Short Stack Polished Exhaust System For O-320 Engine on Grumman Cheetah/Traveler with 150 hp and 160 hp Lycoming O-320 Engines and Lycoming O-360 Engines. (S/N 641 & UP) (Est. Install Time - 7-9 Hrs) (Up to 23
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