I have Tri-y on my focus and love it. ceramic coated aluminum is what I think it's made of but after a year it looks nicer than my T304 SS downpipe thats bolted to it. my tri-y has a nice scavenging I believe with the three y's the final collector is nice too.
I guess equal lengths are overrated is what your saying? I've never used one just the header I got was supposedly the best header on the market for my car so I got it. 
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05 xe 4x4
Go: aFe stg2, TBS, TB coolant bypass flowmaster 40 series, BD PP
Ext: 2.5" leveling kit, Fabtech add-a-leaf, PRG UCAs, SAW Piggybacks in rear 3" body lift, 35x12.5 toyo MTs on 20x9" +18mm offset ultrawheels titan 6 black, ventshades, headlight covers, 5% tint all around and n-fab steps.
Int: wet okole seat covers front and back, jvc arsenal dvd player 7" screen up front, custom 7" screen cut into last fold down pocket of over head console. active 3 way front stage 8" DLS midbasses in doors, 4" xtant XSC/morel mids at a-pillars in glass pods (gloss black painted) and (Blau VC100 rainbow cal25 based) tweets run by an audio art 260.6xe, preamped via autotek 31 band 1/3oct eq
substage always chaging, currently 2 eu-700s d4 wired to 4ohm run by an RF 201s in a 4th order bp made and designed by me .5 sealed side 1cube ported tuned low  w/a single 4" aeroport.
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