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Thexton 389 Backpressure Test Adapter Kit Features: - New test kit aids in diagnosing clogged or restricted exhaust systems.
- Allows comparing backpressure readings ahead and behind of suspected restriction.
- Ideal for diagnosing clogged catalytic converters, collapsed exhaust pipes, etc.
- Kit includes small hole punch for use with air hammer, 5/16" X 1/2" self-tapping bolt and test adapter.
- Use self tapping bolts to plug hole after test is completed.
- Note: Do not install directly into catalytic converter or muffler.
- Gauge not included. Use 0 to 15 pound pressure gauge.
Thexton 389 Backpressure Test Adapter Kit
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