Benefits

Dyno proven up to 23.75 horsepower gain over the original system

30 to 150 RPM increase on static run-up

4 to 6 second reduction in takeoff roll

125 to 300 feet per minute (fpm) increase in climb rate

1.2 to 2.2 gallon per hour (gph) reduction in fuel burn

Cylinder Head Temperature (CHT) extremes reduced between cylinders and overall temperatures reduced

Exhaust Gas Temperature (EGT) extremes reduced between cylinders

Smoother running engine

Fully FAA STC'd tuned exhaust system manufactured under an FAA/PMA

Kit includes a complete 321 Stainless Steel Exhaust System, i.e., 4 headers, cabin heat shroud, carburetor heat, extractor system, muffler, support rod, STC, instructions, including all necessary hardware for installation (nuts, No-blo gaskets, etc.)

New & Improved design for Cabin heat and Carb heat exchangers; significantly more durable than the stock exchangers.

No welds in cabin heat area practically eliminating the possibility of Carbon Monoxide poisoning

Generally within 2 decibels of the original exhaust

Easy installation in only 4-6 hours; little or no modification to aircraft required (1.5 inch hole in cowling required for support rod on 1972 or later model 172s. Template provided with kit)