product description
Torque Valve Torque insert to increase torque in the lower speed range.
This exhaust torque insert works similarly to a valve, which prevents backflow and thus fresh gas contamination
counteracts. This means that exhaust gases cannot flow back into the combustion chamber. The result is better cylinder filling
(especially at low speeds) and therefore higher torque. The very special shape also ensures
the Venturi effect.
Installing the Torque Valve:
Disassemble the exhaust system to access the manifold.
Insert the torque valve into the manifold. It must be flush with the sealing surface of the exhaust manifold, something may help
High temperature sealant (e.g. Firegum) and/or smoothing the weld seam in the manifold. The exhaust system with a new one
Reinstall the manifold gasket. Start the engine and check the exhaust system for leaks.
Absolutely high-quality VA turned part. Suitable for all SR manifolds from our Kickstarter shop .
Dimensions:
- Outer diameter at front of flange: 46.5 mm
- Rear outer diameter: 35.5 mm
- Total length: 31.5mm
GB: Torque Valve for YAMAHA SR500 XT500 WR400F
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