Quote:
Originally Posted by KurtRardin  Are you sure? One 4" pipe has almost 22% more area than two 2.5" pipes together, and only about 12% less area than two 3" pipes. Something tells me that a 3" y pipe that merges with a single 4" pipe would outflow 2.5" duals. | That is what i was thinking. IF i go with a Y, it will have the dual 3" to single 4" flowmaster merge. I'm not even going to mess with the dual 3 to single 3 stuff......
__________________  00' M6 Z28 (461 RWHP, 434 RWTQ) 11.37@121--KABOOOOM! Auto Cross car...Going back to A4 and 6.0L LQ9 with Heads/Cam will now be street/strip car!
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