Find a suitable location to install the included
M18 x 1.5mm weld boss on the exhaust system
(Fig. A). On vehicles equipped with catalytic
converters, Dynojet recommends installing the
weld boss before the converters. Vehicles that
don’t utilize catalytic converters are free to install
the boss anywhere in the exhaust, but we recommend
keeping it within 30” of the exhaust port.
Turbocharged vehicles have rather high exhaust
gas temperatures and pressures. In these applications,
it is best to install the weld boss in the
down pipe as far away from the exhaust turbine
as possible. Never install the sensor in the
exhaust manifold between the cylinder head and
the turbo.
The weld boss should be mounted in a manner
that reduces the risk of moisture contamination
on the sensor. Condensation can build up in the
exhaust pipes and potentially damage the sensor.
Ideally, you should orient the weld boss so
the sensor is between the 9 o’clock and 3 o’clock
position (reading clockwise). A 10° inclination
off the horizontal plane should be considered a
minimum.