When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I closed mine(carved a peice of metal, put two holes into it for the screws), not sure where it heads to(or does) but no problems. It's been about 5+ months thus far.
When at part throttle the EGR system will reintroduce exhaust gases into the intake manifold. This helps to more completely burn some fumes from the exhaust for better emissions, and actually can cool cylinder temperatures.
Yup, reduces emissions of NOx. When cylinder temps get high, NOx levels in the exhaust increase. When exposed to oxygen, NOx will combine oxygen and other Hydro carbons (HC) and form smog.
If your car is subject to emissions testing, will likely fail.