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NissanGuy23 · 04-13-2013, 02:50 PM

This is what i could find

"OEM Nismo: 1.75" Primary pipes that stay true dual throughout the exhaust. They increase to about 2.25"-2.3" later on down the pipe run near the mufflers. There is a H-configuration crossover near the engine."

04-13-2013, 02:50 PM	#7 (permalink)
NissanGuy23 Track Member Join Date: Oct 2011 Location: West Chester, PA Age: 36 Posts: 752 Drives: 09 370Z NISMO PG 6MT Rep Power: 15	This is what i could find "OEM Nismo: 1.75" Primary pipes that stay true dual throughout the exhaust. They increase to about 2.25"-2.3" later on down the pipe run near the mufflers. There is a H-configuration crossover near the engine."