Performance Modifications

Flap / Aileron Gap Seal Kit. Piper Comanche PA-24 Models. 24GS

The KNOTS 2U gap seal kit is the most complete and effective on the market. They are made of 2024T-3 Alclad aluminum, and install to look like they were meant to be there from the factory........not an afterthought!. Our kit is the most complete...

Rudder Gap Seal Kit. Piper Comanche PA-24-400, PA-30, PA-39 Models. 30RS

The Rudder Gap Seal is very beneficial to the Single and Twin Comanches. Originally introduced for the Twin Comanche by Piper in 1971 to increase rudder authority and lower Vmc on twins, KNOTS 2U has improved the design and made it available for all...

Rudder Gap Seal Kit. Piper Comanche PA-24 Models. 24RS

The Rudder Gap Seal is very beneficial to the Single and Twin Comanches. Originally introduced for the Twin Comanche by Piper in 1971 to increase rudder authority and lower Vmc on twins, KNOTS 2U has improved the design and made it available for all...

Wing Root Fairing Kit. Piper Comanche PA-24 Models. 24WR

The Comanche wing root fairing has long been one of our most popular mods. Originally conceived by Piper for the sleek Comanche 400. It will add 2 mph in cruise speed as well as 50 ft/min in climb. Low speed handling is also noticeably improved...

Wing Fillet Kit. Piper Comanche PA-24 Models. 24WF

The Wing Fillet was originally developed to help take the common "slam dunk" out of the Comanche landings. By smoothing the vortices coming from the flap-fuselage junction, the air over the stabilator is less disturbed giving it more authority at...

Wing Tips. Piper Comanche PA-24, PA-30, PA-39 Models. (Set of Two) 2430WT

Piper Comanche PA-24, PA-30 and PA-39 high performance wing tips by Knots 2U. FAA STC approved. The Arapaho Wing Tip is the most aerodynamic wing tip design on the market for the Comanche series adding 2-3 mph!  It is a Hoerner style (contoured)...

Gear Lobe Fairing Kit. Comanche PA-24 Models. 24LOB

Gear Lobe Fairings have been a very successful modification for the the Piper Comanche. Extensive tuft testing showed that without the lobes some of the tufts behind the tire were actually pointing straight down! The Gear Lobes will add 3-4 mph in...

Challenger Air Filter, High Performance (CP-3110)

  K&N Performance Filters have been well known in the automotive world for years, unsurpassed in airflow and filtering capability they are now one of the most used filters on the road today. Now this technology is available and FAA-PMA...

Windshield Cowler Kit. Piper Comanche PA-24 Models. 24WS

The KNOTS 2U windshield "Cowler" wraps around the bottom of the windshield blending it cleanly into the airframe. It covers the existing retainer and its exposed hardware for a slight speed increase and stunning aesthetics. It fits the stock Piper...

Arapaho Dorsal Fin. Piper Comanche PA-24 Models. 24DF

The Arapaho Dorsal Fin kit was derived from the last Comanche ever built, the Arapaho PA-40. It was installed by Piper for two reasons; to add more directional stability in cruise, and to lower Vmc. For cabin air, a newly designed more efficient NACA...

Vortex Generator Kit, Piper PA-24 Models

Micro Vortex Generators are small aluminum blades placed in a spanwise line aft of the leading edge of the wing and tail surfaces. They control airflow over the upper surface of the wing by creating vortices that energize the boundary layer. This...