Hey, I just picked up some tien s tech lowering springs new in the box for 150$. They're in pretty good condition but I'm not sure if it'll mess up my car to put them on. They're only supposed to lower it by an inch but I'm not sure if it'll have any adverse effects on the suspension as a whole or not. This is a bone stock 04 coupe. Hope this is in the right place. Thanks in advance.

 

There's a good chance you will need camber kits as well. You cold install the springs, get an alignment than determine if you need to get the kits. SPL and SPC are the most popular ones.

 

Install the springs and install an SPC rear camber kit with toe bolts.

Your front alignment will be fine. Even if you DONT need it, I HIGHLY recommend getting the SPC rear camber kit WITH TOE BOLTS!