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project.r.racing · 06-02-2013, 09:16 AM

the middle one has just had a enlarge pipe welded to it, and still has the normal inside edge diameter for stock afm to turbo pipe.

the lower one has the same, but at least the inner has be rounded/smoothed for better flow.

06-02-2013, 09:16 AM	#10055
project.r.racing Senior Member Join Date: Sep 2004 Location: n/a Car: n/a Posts: 10,929	the middle one has just had a enlarge pipe welded to it, and still has the normal inside edge diameter for stock afm to turbo pipe. the lower one has the same, but at least the inner has be rounded/smoothed for better flow.