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Message: <blockquote data-quote="gatesl" data-source="post: 28814" data-attributes="member: 15351">Hi everyone.  My stock 2000 LQ4 exhaust has a cracked flange on the passenger exhaust downpipe that I am trying to find the right part for.  OD on the OE pipe is 2.5 until after the O2 sensor, then it's welded to a 3.0 OD pipe.  I think this was a factory exhaust in 2000 due to the towing RPO code I ordered it with, and the HD model was introduced in 2001.  I am trying to find a direct replacement part and having a hard time.It appears the MagnaFlow BRExhaust Direct-Fit Exhaust Front Pipe Kit 107-0260 is close, but specified as 2.75 inch ID on the outlet which I think is a 2.87 OD.  The Walker 55334 is 3" inlet and outlet.  Does anyone know of a direct-fit that is 2.5 OD at the exhaust manifold flange end and 3.0 OD at the cat flange?</blockquote>