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EDacIouSX · 12-09-2012, 02:18 PM

my guess and it's only a GUESS would be because it's a lower pressure which might mean lower air velocity. I am assuming the 5558 is a bigger turbo so its pushing more volume at a slower air speed into the chambers.

12-09-2012, 02:18 PM	#2
EDacIouSX Post Whore! Join Date: Nov 2004 Location: Los Angeles Age: 39 Posts: 4,566 Trader Rating: (53)	my guess and it's only a GUESS would be because it's a lower pressure which might mean lower air velocity. I am assuming the 5558 is a bigger turbo so its pushing more volume at a slower air speed into the chambers.