{"product_id":"beley-exhaust-back-pressure-tester-kit-2-5-inch-gauge-57-inch-heat-resistant-hose-color-coded-psi-zones","title":"BELEY Exhaust Back Pressure Tester Kit — 2.5-inch Gauge, 57-inch Heat-Resistant Hose, Color-Coded PSI Zones","description":"\u003cp\u003e\u003cstrong\u003eBELEY Exhaust Back Pressure Tester Kit is a professional-grade gauge and hose set for measuring exhaust system back pressure to pinpoint clogged catalytic converters or restricted mufflers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen exhaust flow is restricted, engines can lose power, run hot, or respond poorly to throttle inputs. This kit gives technicians and experienced DIYers a fast, reliable way to measure pressure in the exhaust stream, interpret results with color-coded zones, and decide whether a converter, muffler, or piping needs service. It’s built for durability and makes on-vehicle testing simple from the driver’s seat.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the BELEY tester reveal a clogged catalytic converter?\u003c\/h3\u003e\n\n\u003cp\u003eThe tester records back pressure across idle and higher RPM ranges so you can see if pressure exceeds normal limits. Excessive readings in the red band suggest a restriction downstream of the test point, commonly a clogged converter or collapsed muffler packing.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e2.5-inch analog gauge with PSI\/Bar scale and three color bands for instant interpretation.\u003c\/li\u003e\n  \u003cli\u003eFactory-calibrated pointer; reset to zero if bumped during shipment without losing accuracy.\u003c\/li\u003e\n  \u003cli\u003eMeasures idle and 2500 RPM conditions to compare against recommended thresholds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this kit reliable for workshop and roadside diagnostics?\u003c\/h3\u003e\n\n\u003cp\u003eMaterials and design focus on repeatable readings and operator safety. The long, heat-resistant hose and robust adapters let you place the gauge away from hot components, and the rubber protective cover reduces risk of damage if the tool is set down or handled roughly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e57-inch silicone hose rated for high temperature and abrasion resistance for safe distance testing.\u003c\/li\u003e\n  \u003cli\u003eDrop-resistant rubber gauge cover that aids in longevity and grip.\u003c\/li\u003e\n  \u003cli\u003eM12 and M18 thread adapters for broad exhaust port compatibility across many vehicles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I interpret gauge readings and color zones?\u003c\/h3\u003e\n\n\u003cp\u003eThe face shows three colored bands to help you quickly decide if pressure is within acceptable bounds. Readings in green indicate normal flow, amber suggests partial restriction or borderline condition, and red points to a significant blockage that needs attention.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIdle benchmark: readings equal to or below approximately 1.25 PSI (0.09 Bar) are typical.\u003c\/li\u003e\n  \u003cli\u003eHigher-RPM check: pressure up to about 3 PSI (0.21 Bar) at 2500 RPM is expected for many systems.\u003c\/li\u003e\n  \u003cli\u003eRed-band results imply cleaning, repair, or replacement of the exhaust component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this kit be used on different vehicle types and where do I connect it?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit is made to work with most gasoline and light-duty diesel exhaust systems that provide a test port or an accessible bung on the exhaust stream. Use the appropriate thread adapter to fit the sensor bung or remove an oxygen sensor (where safe and applicable) to insert the test probe and measure directly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes M12 and M18 adapters to match common exhaust ports and sensor threads.\u003c\/li\u003e\n  \u003cli\u003eLong hose allows the gauge to sit on the passenger seat or workbench during testing.\u003c\/li\u003e\n  \u003cli\u003eNon-electronic analog gauge avoids interference with vehicle systems and is simple to read.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: mechanics, service shops, vehicle inspectors, and experienced home mechanics who need a fast, portable way to evaluate exhaust flow restrictions. If you troubleshoot engine performance issues, overheating, or poor acceleration that may stem from exhaust back pressure, this BELEY kit gives clear, actionable readings so you can decide on cleaning, repair, or component replacement.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What pressure indicates a blocked catalytic converter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Consistent readings in the gauge's red band, above about 1.25 PSI at idle or over ~3 PSI at 2500 RPM, suggest a restrictive exhaust like a blocked converter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this tester without removing the catalytic converter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Insert the tester at a test port or remove an oxygen sensor safely to measure back pressure without removing the converter.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BELEY","offers":[{"title":"Default Title","offer_id":48086104572062,"sku":"B0F59QK1HK","price":45.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/beley-front-view-gauge_a2fae8ad-594f-4074-8ff8-cf60ebb30a0b.jpg?v=1785884973","url":"https:\/\/northtrailauto.ca\/products\/beley-exhaust-back-pressure-tester-kit-2-5-inch-gauge-57-inch-heat-resistant-hose-color-coded-psi-zones","provider":"North Trail Auto","version":"1.0","type":"link"}