its a bitch to put up. Are you running a test pipe? Connect the downpipe to the 02 housing first, then to the test pipe---it took 2 guys and about an hour to do mine---one to hold, one to thread nuts. Also, I loosened the turbo up alot to get the DP to fit---you may want to try this, it worked wonders--then just tighten back down the turbo

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Black 98 GST missing her owner and looking for a new one...Inquiries welcome