08-04-2010, 06:57 AM
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#7 (permalink)
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A True Z Fanatic
Join Date: May 2010
Location: nirvana
Posts: 6,394
Drives: 2023 NATM
Rep Power: 418
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More reading has also supported the general view that X pipes are superior to H; still unclear to me whether X or Y is superior however...
Exhaust
Exhaust System Installation H-Pipe, X-Pipe,- Car Craft Magazine
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