i recently installed a high flow cat. I cut the flange on the downpipe and then clamped the cat on. A few days later i noticed a leak, so i put it on a lift running and found the clamp joint leaking. I welded it up and took it for a drive, but still heard it leaking when driving by objects. So again, i put it on a lift with it running and it sounded quiet, i put my hand around everything,(all joints, donut gaskits) and did not feel a leak. I then had my boss rev it up while it was in the air and could not feel it but could definatly hear it. I
I was wondering if you could hear either a donut gaskit or a manifold gaskit leak without feeling it and what is the more common to leak. its been driving me nuts, and is just plain annoying. Since i use this is my only car and i use it daily, i don't have much down time, atleast when the exhaust is cool.
99 Bonneville SLE, panosonic CQ-C7203U HU, 760 watt Pioneer 2 channel amp bridged, 1200 watt 12In sony explode in a sealed box, sony explode 5.25 inch door speakers and sony explode 6x9'* in the rear deck, 1 farad cap, (125 dB) 83,000 miles, , apn upper intake and gm aluminum lower intake gaskits, silverstar ultra high and low beams, dynomax super turbo mufflar, dynomax high flow cat, gutted air-box, Astrostart Remote Starter
hella optics angel eyes with silverstar H3 bulbs
99 Arctic Cat ZR600, black magic pipe and can, 4000 rpm clutch, bored .30 over, 120+ hp..