Review on Back Pressure Gauge Kit For Car - Exhaust Back Pressure Tester By After Market Auto & More - 50 Plugs Included - Accurate Results - User-Friendly Instructions - Practical Grey Case by Melvin Boss
Quickest way to test exhaust backpressure
Bought this tester to quickly measure the backpressure on my 2003 F150 5.4L. The O2 sensors were seized, so this method of testing was critical. Just drilled a 5/32" hole ahead of the cat, plugged in the gauge, and fired it up. Drivers side had 15 psi at 2500rpm, passengers side ad 2 psi at 2500rpm. Replaced drivers side cats and got all of the lost power back!
- ACCURATE RESULTS: This back pressure gauge kit will instantly indicate if your engine has an exhaust blockage, having a high accuracy rate. The PSI scale range goes up to 60 and is easy to read!
- The kit is not compatible with all car makes and models, further limiting its usefulness
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