it helps exactly ZERO!
It looks nice. It eliminates the hose coming fromt he top of the crankcase. I have 2. one on the engine and one on the CAI.
No use for either of them. They act to filter debris that should try to enter the top of the engine.
If you're N/A, it does nothing. If you're running some type of power-adder, it is necessary. If you're running a turbo or centrifigul blower, you don't want any pressurized air going through the vent hose and into the crankcase. You'll need to block-off the hole on your intake and use a breather filter on the head because the crankcase needs to breathe. If you're running nitrous, unless you have a direct-port system, you're probably spraying into your intake. You don't want to risk any nitrous getting into your crancase because it's corrosive and could lead to an oil fire.
<hr width=60% noshade size=1 align=left>Later,
Events Coordinator, Las Vegas F-body Assoc.
'96 Elantra GLS
"The shortest distance between two points is a straight line........but, it's not as much fun."
A forum community dedicated to all Hyundai models owners and enthusiasts. Come join the discussion about modifications, classifieds, troubleshooting, maintenance, reviews, and more for your favorite models!