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I went 75mm BBk and C&L. Dyno testing was best with this combo, but I bet if you research you might find an xtra HP or maybe 2 from the full accufab setup. Only differenc I know of is that the Accufab units are polished, but you could always polish the others yourself.... I didn't bother polishing any of my stuff, and I have the trueflow inlet pipe as well, theres nothign shiny under t hood anyway..... Check out www.CNLperformance.com to get their dyno #'s....
just looked at the sit emyself, and now they offer the plenums polished as well for free $169 totalt and the inlet pipes polished for an xtra 25 bucks!
I installed a C&L, and 75mm Accufab. The C&L is worth the money. A couple hours of sanding and polishing the inside will smooth out the rough texture and should pick you up the 1-2hp more that the Accufab plenum will get you.