I just noticed an area where the y-pipe is compressed making that section of
the pipe much smaller then the rest. The pipe and engine are out of the
truck right now so it's hard to figure out exactly where that crimped
part coincides with the truck, but it's on the drivers side and possibly
near where the pipe goes past the gear selector linkage assembly that's
bolted to the frame. Maybe it's there to clear those parts? It's a '96 318
4x4. I know the diameter gets small at the press bends but this is just a
slight curve where the compression is located.
My questions are..
Is this normal for this truck or was it compressed afterwards?
Is the stock y-pipe a weak link in the exhaust system? The only mods are an
M1 Intake and larger throttle body but I may upgrade from the cat back in
the future when the rest of the exhaust goes.
Walker makes a y-pipe and it looks like in the pituree that there's no
compression in the area discussed:
http://www.amazon.com/Walker-Exhaust-40235-Front-Pipe/dp/B000JZYSU4
They use compression bends too but overall it look like it would flow better
then stock (again, if my mild mods need "better then stock" exhaust)
Thanks for any advise!
James
after thought...took some pics:
http://i1215.photobucket.com/albums/cc505/jamepc/Misc/IMAG0758.jpg
http://i1215.photobucket.com/albums/cc505/jamepc/Misc/IMAG0759.jpg
http://i1215.photobucket.com/albums/cc505/jamepc/Misc/IMAG0760.jpg
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