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<x-charset iso-8859-1>Key indicator, Jim, is the "QP muffler". That means an after-market exhaust header and those are merged, thus setting up a nice mounting point to poke the sensor in to :) So, on a T3 it's very easy if using an after-market exhaust system. The mounting would be as far past the piping merge as can be and a heated O2 sensor should be used. Toby Erkson air_cooled_nut@pobox.com '72 VW Squareback 1.6L bored and stroked to 2.0L, Berg five-speed '95 VW Jetta III GL 2.0L, P-Chip, Jamex suspension, 2.25" MagnaFlow exhaust, etc. Portland, Oregon, http://www.icbm.org/ >-----Original Message----- >... It works beautifully, had my friend weld the bung into >> the space after the collector and before the QP muffler. >> It gets plenty hot enough there to give you the whole >> range of signal--now, on a stock type 3, I've been >> thinking about where to put it? > >Good question! I never thought about this before, but if >you're using an >oxygen sensor type of system, then the sensor has to be HOT, >and there is >no place on a VW system that will be hot AND in line with the >exhaust from >ALL the cylinders. Quite a dilemma. ... ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/ </x-charset>