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Knives · 09-23-2009, 10:36 AM

Concerning an exhaust mod, I heard for the best HP gains you should weld a piece of metal over the tailpipes.

09-23-2009, 10:36 AM	#7 (permalink)
Knives Enthusiast Member Join Date: May 2009 Location: New York Posts: 293 Drives: 2009 370z 6MT Rep Power: 16	Concerning an exhaust mod, I heard for the best HP gains you should weld a piece of metal over the tailpipes.