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Exhaust System Diagnostic Tool Exhaust Back Pressure Tester
Exhaust System Diagnostic Tool Exhaust Back Pressure Tester
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- Exhaust System Diagnostic Tool Exhaust Back Pressure Tester
- Adaptor fits into oxygen sensor hole enabling back pressure of mufflers and catalytic converters
- Gauge adapter threads intooxygen sensor ports (both 12mm and 18mm).
- Test at idle and at2500 rpm's. Pressure should be below 1.25psi at idle and below 3psiat 2500rpms.
- Higher readings indicate a restriction which shouldbe corrected
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