Is Tenzo a reputable brand. Have a chance to get all 4 new in box under $100.

Thanks.

A quick google search doesn't lend any happy answers.

Tenzo is out of business now. Their suspension components used to be nice that they used to sell (i had a set of lowering springs about 5 years ago on my first 2g with AGX's and they were a nice ride...but seeing how im sure they are a sleeved coilover, i bet they suck.

There is nothing wrong with a sleeved coilover setup as long as you choose a proper shock and go with a nice set of springs. The biggest problem you will have is adjusting preload. Unless you want to get longer springs every time that you would want to try a different preload setting.