I see a lot of people here want to have a good suspension but cuz, of low budget they just stick with lowering springs and a o.k shocks. I made this so people will have a option having a quality coilover in half the price. I did this to civic EG, EK, corolla AE92, AE86 and nissan 240sx but im sure you can do this to most of the cars.

Note: Make sure buy quality coilover sleeves pls. no thin aluminum sleeves we did this on an ebay sleeves and after 3 days my friend looked at the sleeves and found a big crack.
Note: This DIY are for short stroke struts if you want to use a longer stroke shocks you can but you’ll need to adjust your cuts.
Steel w/ a retainer nut (glad nut) will be easier, here is what I have
Sleeve w/ a top hat (no that gold top is not the retainer nut)



You can also use one without the stopper like this





Tools: Vice, angle grinder, hammer, pipe cutter or anything that can cut metal on a straight line, pipe wrench or any wrench that can loosen the retainer nut and (if you don’t know how to tack weld you can take it to a fab shop or machine shop that can do a good tack welding.