I have the omnipower street full height adjustable coilover for 6 months now and I havent run into one single problem. Heres my review in a cliffnotes style.
Handling:
Night and day over stock. Spring rates are 10k front and 8k in the rear, where tein basics are like 7k front and 4k rear. Car sticks to the road, reduced understeer and bodyroll dramatically.
Ride Comfort:
One word STIFF. When first installing them ride was very firm and you feel the road alot more. If theres a bump youll know about it. RIde is more shocking, not bouncy, if you hit a bump, youll feel it, and the shocks damp the springs quickly and your back cruising. In the begininng the ride will be a little harsh but over time when the springs break in, its near stock but still firm, not floaty. I love it.
Installation/Height Adjusting:
Installation is very straightforward, becasue the springs arent fat like regular progressive springs, they are very narrow, so the coilovers slip in very easy. Height adjustment takes time.Omnis height adjust different from other coilovers. Most coilvers adjust with a spanner wrench and the spring. Omnis springs are preloaded meaning that they are fixed in place, so the spring stays in the same postion no matter the height.Omnis height adjust by twisitng the whole shock body. You have to remove the wheels and remove either the bottom or top of the shock and twist up or down. Height adjusting for me takes about 2-3 hours.
If you want a good balance of comfort and handling go with the streets. If you wannna turn your car into a autocross beast, go with the sports.Soemtimes I wish I went with the sports but I have to commute to school and work 7 days a week.Price wise and performacne wise they are cheaper and perform better than Tein Basics IMO.
heres some pics:
shock installed:
how to height adjust: