i've just installed a set of BuddyClub N+ on my euro.

In my opinion, i'm very happy with what i bought.
Height adjustable and 15-stage dampening adjustment.

Its very soft on the softest setting (Close to stock), but once u dial in about half way, it really stiffens the car up, but not in an uncomfortable way. The car has really improved on cornering performance, and now i can attck corners with much higher confidence.

The price is about the same as TEIN SS. It retails at $2000, and u get a made in japan product.

Zeal has two types of coilovers for the euro. One is the less expensive Function X-s, which is mainly for street use. It is height and dampening adjustable. If i remembered correctly, it is a 6-stage dampening adjustment coilover. If i remembered correctly, it sells for about the $2500 mark.

The other one is the Function X, which is more of a track orientated setup, also height and dampening adjustable. This set is 30-stage dampening adjustable and is priced at about $3000 (i think)

I personally think TEINs, BuddyClubs are more than enough for street use.

And i would go with what the others said. Save up ur money and go with coilovers. You would be much happier with the end result.