QUOTE(K.Lee @ Jan 3 2012, 04:03 PM)
Tauke F1 la...
Cap ayam extractor + 1 midbox + 1 midbox(to replace stock one, coz stock one the fiber gone d) then to the S flow...
Midbox and bullet not the same meh?
Added on January 3, 2012, 4:04 pmStill cnt brain this back pressure thing coz the midbox is straight flow one

I thought the curve and the swirling only will give back pressure

forgot to tell u all not to follow his recommendations. His manual cars recommendations works, but auto recommendations sucks.
Bullet is different from midbox la macha. Midbox/mid muffler is the leper, ovallish thick tabung. Bullet is just one straight (or swirling), cylindrical pipe that may be 1/8 to 1/2 an inch thicker than stock piping. A swirling bullet increases the flow speed/velocity of the exhaust gas. A midbox slows down the gas flow to store/collect backpressure.
Added on January 3, 2012, 4:11 pmSwirling does not create backpressure. Curves and volume does.
Think of backpressure this way: If there's something that RESTRICTS or slows down the exhaust gas flow in the system, it creates backpressure. If there's something that INCREASES exhaust flow, it reduces backpressure.
This post has been edited by xandras: Jan 3 2012, 04:19 PM