thats fine that you said daily/street. Doesnt make what you said anymore correct. Its still ridiculous . Specifically for this thread...both konis and billies are a better product than oem.
better performance and way better longevity. sachs die out way to quickly.
they arent overly harsh either unless you have them adjusted to much or are running a stiff spring. Even a good coilover set up can have amazing ride quality and performance.
But I never suggested that route for OP. he doesnt need them.
Many other parts out there that are great.
You may have purchased crappy parts. thats your own fault. if that was a known problem with the header that information wouldve been available before your purchase. Your fault for not finding that out beforehand...if it was random...Well thats tough luck for you and tells me I wouldnt buy from them. headers are made in jigs so if its blocking the drain plug there is something fundamentally wrong with the design itself. Lots of other headers out there that dont have that issue...shit even $50 ebay headers are better than that. They can have their own issues(sometimes) But its a $50 header so thats to be expected and its not a big deal if you know what to expect going into it.
Most of the aftermarket headers make more power than the oem stuff..even compared to the euro set ups(for like an m3 which are decent)
my eisenmann fit perfect on my car. not a single hiccup. In fact there isnt anything aftermarket that has given me any problems on...any car Ive ever had. But then again I always make sure I research it before I buy. I dont just blindly buy something.
err I did need to massage the intake I bought ever so slightly...because it was from a different model !...so I had to add 2" of tubing off the maf...and funny enough if I bought the one for my car ...it comes that way already. hrmm. (I bought it because it was close enough and I got it really cheap...I knew the differences going into that purchase. No big deal)
In some cases the OEM(or quality OE) is the best(like ball joints) but to make silly blanket statements like "all aftermarket is crap" is so asinine.
There are great aftermarket brake pads, rotors..fluid etc
lots of quality parts out there...
edit: looks like a design flaw with gen 2?