[1vicissitude]

If you have an NA the ISC tophats will not add enough preload to be noticed. You will need to adjust your ride height anyways, so preload is the last thing to be worried about with these tophats. You will have more than enough room to make any adjustments. The NA tophats are pretty thick themselves. You will need to play around with your ride height a good bit after install.

If you are using NA hats these will lower you a good bit. Their mounting surface is very thin, the spring will be a lot closer to the subframe. Because you lose droop with these hats, I don't think it will matter if you use the helpers. Your suspension cannot droop enough for them to be uncompressed.

These top hats don't magically allow your coilovers to have more stroke, they just move the shock higher up into the car. Your bumpstop will be around 2" higher up then it is now. You lose droop(how far your suspension extends when in the air) in exchange to get off your bumpstops. This is great if your slammed, because you will actually be using the coilover and not riding the bumpstop all the time.

If you are slammed, the only thing that sucks with a 2" ISC hat is you probably will be using your tires as bump stops now. Your tire will hit something before your shock runs out of stroke.

 

[1vicissitude]

If you are slammed go for it, if not DO NOT get them. I have them and am not slammed. Every bit it extends upwards it pulls out of your droop. My tires now lose contact over bumps. It's flat out dangerous. If you are slammed you can regain the stroke you lost. If not you are doing more harm than good. Heck my RUCAs even make contact with the subframe from time to time.

Measure your coilovers stroke, measure your actual bump travel, then determine if they will be of any benefit. The only thing certain is you will lose droop. Whether you coilover/shock has enough stroke that it's okay is dependent on the length of your stroke.

 

[1vicissitude]

Yeah at your ride height you'll see nothing but good things.

In all honesty if I were to lower my car right now it would ride better. It's very jarring when I run out of droop. The suspension slams downward, it's quite alarming.

 

[1vicissitude]

Because then I'll be entering in the low mod slammed/slammed thread territory. It might ride smoother if I lower it, but then I will have a whole new problem. I don't want to destroy the underside of my car, and I regularly have to drive over large speed bumps. I would have to park off campus if I got any lower. Not worth it, and I don't care if my car looks dope. I'd rather be able to drive it and not destroy it.

 

[1vicissitude]

Picked up the basics with the tophats already fitted. I've been riding around with them for awhile now. Didn't realize what was happening until my car was sitting on jackstands for awhile. I wish I hadnt thrown out my old crap, oh well. I figure im just going to wait it out until I want to upgrade. I sell them to someone who wants to drag frame, they'd be perfect.