Check Exhaust Restrictions From the Driver’s Seat
This kit measures exhaust back pressure to show whether a clogged catalytic converter or other blocked exhaust component is restricting engine performance. It suits professional technicians and DIY users working on a wide range of vehicles.
- 2.5-Inch PSI/Bar Gauge
- Three-Color Scale
- M12 / M18 Adapters
- 6 ft Silicone Hose
- Molded Carrying Case
Key Features
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Easy-Read Gauge
PSI and bar scales with three color zones that indicate good or bad status, so you can judge the exhaust system quickly.
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Shockproof Rubber Cover
A protective rubber boot gives a comfortable grip and helps prevent damage if the gauge is dropped.
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Long, Heat-Resistant Hose
The 6 ft thickened silicone hose resists wear and heat and lets you watch the gauge from the driver’s seat.
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Two Thread Sizes
M12 and M18 threaded adapters connect the gauge to the exhaust port.
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Organized Storage
A custom-molded black case holds every piece in place and protects the kit from damage or loss.
Highlights
M12 and M18 Connection
The threaded adapter links the hose to the exhaust port.
Three-Color Gauge
Dual PSI/bar scale inside a shockproof rubber sleeve.
6 ft Hose
Room to read the gauge from the driver’s seat.
What’s in the Box
- Back pressure gauge with rubber cover
- 6 ft hose
- M12 / M18 thread adapter
- Hose clamps
- Carrying case
How to Use
- Connect the gaugeFit the M12 or M18 adapter to the exhaust port and attach the hose and gauge.
- Test at idleRead the back pressure with the engine idling.
- Test at 2500 rpmHold the engine at 2500 rpm and read the gauge again.
- Compare the readingsCheck both readings against the reference values listed in the specifications.
Good to Know
Care
- The gauge is checked and calibrated before shipping. If the pointer does not rest at 0, it may have been knocked in transit; remove the cover and reset the pointer to 0. This does not affect test results.
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