2 Port Header Sampling Manifold Valve - P/N 000995
(Shown with standard Bridge Probe and dyno gas cooling extensions – not included)
The 2-Port Pro-Series Rotory Valve selects either Port 1 or Port 2 for direct exhaust header gas
measurement from a 2 cylinder engine. With the right port adapaters, the valve is compatible with Ducati,
Aprilia and other motorcycles.
The Teflon-sealed rotary valve samples the selected port and automatically closes the unused port.
Simply turning the valve handle allows only the exhaust from the selected port to enter the exhaust gas analyzer.
Accurate tuning of individual cylinders is gauranteed, because exhaust header port sampling system prevents the air dilution
commonly encountered in tailpipe gas analysis.
| Header Port adapters are available for several motorcycle manufacturer’s exhaust header ports. |
10MM Exhaust Port Adapter Assy. for Honda, Moto-Guzzi
P/N 001088 |
|
6MM Exhaust Port Adapter Assy. for Yamaha
P/N 001087 |
|
Exhaust Port Adapter Assy. for Ducati, Aprilia
P/N 001175 |
|
Optional Accessories
Dyno Gas Cooling Extension – P/N 000889
These stainless steel extensions go between the high temperature flexible line and the 90 Degree swivel
fitting – and provide an additional 7.5 inches of cooling before the exhaust gas reaches the flexible
lines. These extensions are intended to be applied to a system which operates the engine under load –
where exhaust gas temperatures may exceed the 450 Degree F limit of the flexible lines. Those who
consistently tune their engines at high temperature under load (on a dyno) should consider this
accessory.