O.S. exhaust header and header pipe for the Max 140 RX 2-stroke engine. It is a fuse-top style pipe (upward bend of 30 degrees and then straight back). This mounts to the exhuast port at the rear of the engine.

O.S. replacement exhaust manifold is designed to fit the following OS engines: 1.08 FSR RC1/Muffler and 90 FSR

O.S. M2000SC manifold (header) for use with the O.S..21VZ-B V-Spec and .30VG series engines

OS Exhaust Header for the .46 VX-M engine.

O.S. Speed M1003SC exhaust header pipe assembly for the Kyosho V-One S3.

O.S. header for the T-2040 tuned pipe and the OS 21VZ-R.

O.S. left side exhaust header for the .12 TZ rear exhaust O.S. engines. The "SC" stands for "Spring Connect" which means it uses springs to attach the tuned pipe to the header.

O.S. right side exhaust header for the .12 TZ rear exhaust OS engines. The "SC" stands for "Spring Connect" which means it uses springs to attach the tuned pipe to the header.

O.S 90° exhaust manifold for rear exhaust round port engines.

O.S. optional Max manifold for the T-2060 tuned pipe for the O.S. Max VZ-B V-Spec Engine and the .30VG Series.

O.S. Speed M1003 Exhaust Header Pipe Assembly for the Kyosho V-One S3.

O.S. .18 header for the Traxxas Revo when the O.S. Max .18TM engine is used.

O.S. 180 degree header for the 21 RZ engine.

OS Max Exhaust Header (manifold) for the Tamiya TGX Vehicles using the OS Max 12CV, 12CV-X, 15CV, 15CV-X Side Exhaust Engines.

O.S. exhaust header pipe for the Max 12CV, 15CV and the Kyosho GS-11 series car and buggy engines. This pipe bolts to the exhaust port, curves around the rear of the engine and connects to the tuned pipe with a coupler (not included).

O.S exhaust manifold for the CV and CV-R series of engines. This header is designed to work with the Kyosho V One R.

O.S. shiny manifold for the Kyosho FW05R chassis kit. This is a Manifold for rear exhaust round port engines such as the OS Max 12TR,12TZ ~ 18TZ engines. Attaches the tuned pipe to the engine.

OS Max exhaust header (manifold) for the 15RX rear exhaust engine.

O.S. exhaust header (Manifold) for the OS 21RG-M and 21RG-MX Engines. This routes the exhaust from the crankcase to the muffler. This manifold is designed specifically for the 21RG-M and 21RG-MX.

O.S. header used for the Kyosho Pureten series of vehicles to be used with the OS Max 12TR & 12TZ engines.

O.S. header used for the Kyosho Pureten series of vehicles to be used with the OS Max 12TR & 12TZ engines.

O.S Engines 60 Degree In-Cowl exhaust header pipe for use on the 72FS-a Ringed Engine.

O.S Engines optional 80 Degree In-Cowl exhaust header pipe for use on the FS72-a Engine.

O.S Engine 80 Degree In-Cowl exhaust header pipe for use on the 56FS-a ringed engine and the FS-40 surpass ringed 4-Stroke engine.

O.S. exhaust manifold (header) makes a 90° bend for routing exhaust inside the cowling on a radio controlled airplane. This is usually used with the EX-502 Silencers.

O.S. exhaust manifold (header) makes a 120° bend for routing exhaust outside the cowling on a radio controlled airplane.

O.S. exhaust manifold (header) makes a 90° bend for routing exhaust inside the cowling or fuselage on a radio controlled airplane. This is usually used with the EX-502 Silencers. This header is designed to fit the O.S. FS70 & FS91 engines.

O.S. exhaust manifold (header) makes a 120° bend for routing exhaust outside the cowling or fuselage on a radio controlled airplane.

O.S replacement exhaust header pipe for the following engines: FS-120S, FS-120SII, FS-120SE, FS-120SSP.

O.S. exhaust header pipe for the Max FL70 and Ultimate 70. This is a short, curved exhaust pipe that is threaded at both ends and uses black nuts to secure the pipe to the exhaust port and muffler to the pipe.

O.S stock exhaust header for your O.S. FS70 & FS91 Surpass engines.

O.S. intake manifold "B" assembly for the O.S. Max IL-300 Engine.