Thoughts on using flex pipe to replace 2ndary cats on N52 midpipe?

Route 16 · 12-04-2013, 04:12 PM

I've thought about using a flex pipe to replace the 2ndary cats because it's just right at the curve of the midpipe. Anyone have any pros/cons to this set up?

*Why not replace it with a solid tube?-A lot of shops don't do clean welds and I want to make the midpipe look factory. I wouldn't want a section of the pipe showing a section was cut off when the whole midpipe is a solid looking piece.

Johnny D · 12-04-2013, 04:54 PM

It would work, but the solid pipe would be a better idea. Another option is to attempt to break up the material inside the secondary cats and put them back on.

Route 16 · 12-04-2013, 05:00 PM

Quote:

Originally Posted by Johnny D

It would work, but the solid pipe would be a better idea. Another option is to attempt to break up the material inside the secondary cats and put them back on.

You win.

12-04-2013, 04:12 PM	#1
Route 16 I got lei'd 873 Rep 7,615 Posts Drives: '10 E90 M3 Join Date: Sep 2011 Location: Dark Side of the Moon iTrader: (62)	Thoughts on using flex pipe to replace 2ndary cats on N52 midpipe? I've thought about using a flex pipe to replace the 2ndary cats because it's just right at the curve of the midpipe. Anyone have any pros/cons to this set up? *Why not replace it with a solid tube?-A lot of shops don't do clean welds and I want to make the midpipe look factory. I wouldn't want a section of the pipe showing a section was cut off when the whole midpipe is a solid looking piece. Attached Images
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12-04-2013, 04:54 PM	#2
Johnny D Major 64 Rep 1,087 Posts Drives: 2006 BMW 325i Join Date: Apr 2011 Location: Hot Springs, AR iTrader: (4) Garage List 2006 BMW 325i [9.16]	It would work, but the solid pipe would be a better idea. Another option is to attempt to break up the material inside the secondary cats and put them back on. __________________
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