there is a gasket there, you are going to have a hell of a time getting the stock downpipe off though. The very top bolt, the one you can't see and barely feel has a lock washer on it. I had to cut the bolt off while it was still on the car with a dremel cutoff wheel. [B)] needless to say, this stupid bolt made an extra 3hrs work for me. but now i know, and you do too. Not sure on the O2 sensor question though.
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<div align=\"right\"><h2><b><i>Can we say Sleeper?</i></b></h2></div id=\"right\"><div align=\"right\">  </div id=\"right\">
PrototypePower Performance UpCharge Pipe, Custom Cold Air Intake
Mopar Blow Off Valve, Mopar Stage ? Mopar Stage 1 PCM, AGP WasteGate Actuator,
TurboXS Dual Stage Boost Controller, TruBendz 3\" DownPipe with Custom 3\" Dual Exhaust,
NGK V-Power Plugs and AGP Performance Wires,
Autometer A-Pillar Pod with Boost/Trans Temp Guages
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