Post by
JFromjn »
https://forums.nicoclub.com/jfromjn-u43219.html
Thu Jul 13, 2006 3:17 pm
What effect does the Z-tube have on gas mileage with a stock air filter? Also, what purpose does the extra chambers serve on the stock tube? Are they just for sound or is there a functional purpose for them? Just curious as to the difference in the stock versus the Z-Tube.