I'm not sure either about how big of a role the EGR plays. Im trying to get away from as much custom work done. I dont have hookups or a friend or a shop to do my own work. I'd have to pay everyone to do stuff.darkforcejackal wrote:I recirculated my EGR system with custom-bent metal tubing from the EGR valve connecting to my downpipe, and it seems to work.
And my car passed Ontario's "Drive Clean" emissions testing.
Not sure how much impact the EGR actually has on final numbers though.