The HSD's I am running took a little to get used to. I have the fronts and rears even at 7/16 and I will be putting the front at 8/16 and the rear at 6/16 now because I find at higher speed on a bumpy road, the car tends to skip while under WOT (goes from one bump to the next with no compression... like skipping a rock over water). Great on cornering and not nearly as "lumber-truck"ish as the Megan coilovers on my 87 I used to have. They aren't quite broken in yet to actually get the wheel alignment done.. (waiting about another month with some driving on them for that). Overall, Im happy. They are worth the investment if you like less body-dip on higher speed corners, but they do take a bit of getting used to if your running very low sidewall tires like my 18's. Not much hook on a wheel like that so in second gear with this suspension, I have trouble holding traction at WOT.
The EGR hose (OEM) is obsolete from my searching.. so I just got rid of the EGR period. (which I can do where I live). Not recommending that though, because there are issues to be considered (a whole other topic), but for me, its an unmonitored system that has failed on 3 of my MK3's so I dont want to worry about it (plus I cant get the replacement part I needed anyway). My cats are gone too though.. but that was more by accident than anything else, because I didn't do the exhaust "planned" like I wanted to have the high flow 3" cat on it. Legal where I live.. so Im not worried about it.
I didnt drop my car as much as the OP did either. I just went 1" lower on all 4 corners. Thinking that is as far as I want to go. (personal preference)
