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Old 08-23-2008, 11:55 PM   #5
Cloudsurfer
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Join Date: Jan 2007
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Posts: 1,400
The 3 into 1 part is great, though you still have short primaries, which will bolster low end torque, not high RPM HP. The cats are allegedly high flow, but I have no idea of their quality, or if they are metallic core or not. My real issue, however, is with the design (or lack thereof) of the end tanks around the cats. Look at the FabSpeed catted headers, with their beautiful enlarged/ reduced cones to smooth flow into and out of the cats vs the direct in (no end tank at all) and sideways (barely an end tank) exit.

I can't say for certain, since I haven't seen these on a flow bench, but I can say that I've never seen anything that flows fluid well look like this.

Patrick
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