his quality header is made of all stainless steel. We wanted to see what power it would make so we dyno'ed before and after this header on a new 350z with only a Gen1 Borla exhaust and intake on it. With an equal comparison of before and after the headers gained 10 horsepower and 3 ft/lbs of torque across the board. These are great gains. Choose this header because its proven and from a name you can trust.
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