allrighty guys, here's my take on the tein basic coilovers.
Just like 3g legend said, do not use the oem front rubber isolator in the front. I at first felt really uncomfortable without any rubber padding between the spring and the upper mount so I went ahead and left the oem rubber isolators on. The problem with this is that it made too much noise because the RL rubber isolator is bigger than the tsx basic coilover. I went as far as ordering a oem rubber isolator from the TSX and it still made noise. We finally opted on leaving it bare without any type of rubber isolator and that did the trick! no noise!
I know 3g legend gave his feedback already but his was feedback for a super low drop.
my feedback is based on a conservative drop, tight two finger gap in the front and a tight two finger gap in the back. I guess you could say a 1.25" gap all around.
Overall, I really enjoy this new set up. If your looking for a sportier feel and don't mind a little more bounce then this is for you. If you have kids and wanna keep a stock ride feel then this is NOT for you.
other than the drop, the biggest improvement with the tein basic coilover is the handling. I am not exxagerating when I say this but the car is a COMPLETELY DIFFERENT CAR in terms of handling. It feels NOTHING like the former stock suspension, the "boatride" feel is gone, the "delay" in response is gone. You can change lanes quickly and you can make tight sharp turns (as if it was a civic), you can make round about free way on ramp, off ramp exits and entrances swiftly and quickly without any drag and delay. The feel of your calling falling off the road is now GONE.
The only drawback to the tein basic coilovers is the overall increase in "bounce". You will feel every bump and hump of the road and your car will re-act to it. if the road is smooth then it feels great but if the road is rough then you will feel it. I think the tein SS with adjustable damper can fix this issue.
Overall - I like it, the trade offs are totally worth it. If I knew the tein SS with adjustable damper would lessen the bounce then that would be my primary choice.
This is a great alternative for us ka9 owners who's only other choice is stock oem relacement which cost over 800 bucks a set (just for the struts alone). The Tein Basic set is a deal since it cost around 675 dollars. It's a no brainer when it comes to replacing your struts. Remember, you can always keep it on the super high setting for a stock height. It just makes no sense to ever buy oem struts or springs again.
also I'd like to add, the tein coilovers for TL or Accord sets could be better choice but I'm not sure.
below are pics of the drop just to give u an idea of how low and conservative I went.