I used this on my drag car, where brakes are extremely important and pressures really can spot an issue before its too late. Just take out the middle part of the bleeder (not for use with stock calipers or bleeders) and thread in this gauge. Get someone to watch the needle and pump the brakes yourself. Easy and simple to use. Very little if any brake fluid is lost with this. Definite recommend, s***ty I waited so long to buy one.
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