<div class='quotetop'>QUOTE(DamnYankee &#064; Jan 16 2007, 05&#58;24 PM) [snapback]80012[/snapback]</div>
My Tri-Y&#39;s are Doug Thorley&#39;s and I like &#39;em just fine. But everyone loves their Pacesetters. I just gotta be different.

When you ask which is better between true duals or single, I think you&#39;d be hard pressed to find anything proving one is "better" than the other. Their job is to expel the exhaust. If they do that, they&#39;ve done their job, simple enough. I ran a single 3" pipe from my Y to a 3" in/3" out muffler and dumped it before the axle and it seems to be fine. Not sure if it would improve anything running true duals or not. I am pretty sure my setup moves the volume of air my engine is expelling though. You&#39;ll probably get a different sound running duals vs. a single pipe though too, so that&#39;s something to consider.
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thanks for the reply DY . much appreciated my concerns were answered just trying to figure out which way i wanna go, i think if not mistaken my pipes are 2 3/4 in diameter i guess it would be feasible to upgrade them to 3 in.?